Index of values

Integer multiplication.

Exponentiation.

Floating-point multiplication.

!r returns the current contents of reference r.

Negation of (==).

e0 && e1 is the lazy boolean conjunction of expressions e0 and e1.

The boolean 'and'.

Integer addition.

Floating-point addition.

Integer subtraction.

Floating-point subtraction.

Integer division.

Floating-point division.

r := a stores the value of a in reference r.

See (>=).

See (>=).

Negation of (=).

e1 = e2 tests for structural equality of e1 and e2.

e1 == e2 tests for physical equality of e1 and e2.

See (>=).

Structural ordering functions.

List concatenation.

Application operator: g @@ f @@ x is exactly equivalent to g (f (x)).

String concatenation.

f1 ^^ f2 catenates format strings f1 and f2.

n asr m shifts n to the right by m bits.

Bitwise logical and.

Bitwise logical or.

n lsl m shifts n to the left by m bits.

n lsr m shifts n to the right by m bits.

Bitwise logical exclusive or.

Integer remainder.

Reverse-application operator: x |> f |> g is exactly equivalent to g (f (x)).

e0 || e1 is the lazy boolean disjunction of expressions e0 and e1.

The boolean 'or'.

Unary addition.

Unary addition.

Unary negation.

Unary negation.

__FILE__ returns the name of the file currently being parsed by the compiler.

__FUNCTION__ returns the name of the current function or method, including any enclosing modules or classes.

__LINE_OF__ expr returns a pair (line, expr), where line is the line number at which the expression expr appears in the file currently being parsed by the compiler.

__LINE__ returns the line number at which this expression appears in the file currently being parsed by the compiler.

__LOC_OF__ expr returns a pair (loc, expr) where loc is the location of expr in the file currently being parsed by the compiler, with the standard error format of OCaml: "File %S, line %d, characters %d-%d".

__LOC__ returns the location at which this expression appears in the file currently being parsed by the compiler, with the standard error format of OCaml: "File %S, line %d, characters %d-%d".

__MODULE__ returns the module name of the file being parsed by the compiler.

__POS_OF__ expr returns a pair (loc,expr), where loc is a tuple (file,lnum,cnum,enum) corresponding to the location at which the expression expr appears in the file currently being parsed by the compiler.

__POS__ returns a tuple (file,lnum,cnum,enum), corresponding to the location at which this expression appears in the file currently being parsed by the compiler.

Terminate the calling process immediately, returning the given status code to the operating system: usually 0 to indicate no errors, and a small positive integer to indicate failure.

Terminate the calling process immediately, returning the given status code to the operating system: usually 0 to indicate no errors, and a small positive integer to indicate failure.

Return the absolute value of its argument.

Return the absolute value of its argument.

Return the absolute value of its argument.

Return the absolute value of its argument.

abs x is the absolute value of x.

abs f returns the absolute value of f.

Return the absolute value of the argument.

abs_float f returns the absolute value of f.

Accept connections on the given socket.

Accept connections on the given socket.

Check that the process has the given permissions over the named file.

Check that the process has the given permissions over the named file.

Arc cosine.

Arc cosine.

acquire s blocks the calling thread until the semaphore s has value 1 (is available), then atomically sets it to 0 and returns.

acquire s blocks the calling thread until the value of semaphore s is not zero, then atomically decrements the value of s and returns.

In bytecode, the identity function.

Addition.

add t x adds x to t.

add x s returns a set containing all elements of s, plus x.

add x q adds the element x at the end of the queue q.

Addition.

add x s returns a set containing all elements of s, plus x.

add ~key ~data m returns a map containing the same bindings as m, plus a binding of key to data.

Hashtbl.add tbl ~key ~data adds a binding of key to data in table tbl.

add key data m returns a map containing the same bindings as m, plus a binding of key to data.

Addition.

Addition.

add x y is the addition x + y.

Hashtbl.add tbl key data adds a binding of key to data in table tbl.

Floating-point addition.

Addition

add_buffer b1 b2 appends the current contents of buffer b2 at the end of buffer b1.

add_bytes b s appends the byte sequence s at the end of buffer b.

add_channel b ic n reads at most n characters from the input channel ic and stores them at the end of buffer b.

add_char b c appends the character c at the end of buffer b.

Add a directory to the load path

Convert item documentation to attributes and add them to an attribute list

Convert field info to attributes and add them to an attribute list

add_int16_be b i appends a binary big-endian signed 16-bit integer i to b.

add_int16_le b i appends a binary little-endian signed 16-bit integer i to b.

add_int16_ne b i appends a binary native-endian signed 16-bit integer i to b.

add_int32_be b i appends a binary big-endian 32-bit integer i to b.

add_int32_le b i appends a binary little-endian 32-bit integer i to b.

add_int32_ne b i appends a binary native-endian 32-bit integer i to b.

add_int64_be b i appends a binary big-endian 64-bit integer i to b.

add_int64_ne b i appends a binary little-endian 64-bit integer i to b.

add_int64_ne b i appends a binary native-endian 64-bit integer i to b.

add_int8 b i appends a binary signed 8-bit integer i to b.

Same as add_ppx_context_str, but for signatures.

Extract information from the current environment and encode it into an attribute which is prepended to the list of structure items in order to pass the information to an external processor.

Add the elements from the iterator on the top of the stack.

Add the given elements to the set, in order.

Add the elements from the generator to the end of the queue

Add the given elements to the set, in order.

Add the given bindings to the map, in order.

Add the given bindings to the table, using MoreLabels.Hashtbl.add

Add the given bindings to the map, in order.

Add the given bindings to the table, using Hashtbl.add

Add chars to the buffer

add_string b s appends the string s at the end of buffer b.

add_subbytes b s ofs len takes len characters from offset ofs in byte sequence s and appends them at the end of buffer b.

add_substitute b f s appends the string pattern s at the end of buffer b with substitution.

add_substring b s ofs len takes len characters from offset ofs in string s and appends them at the end of buffer b.

add_symbolic_output_item sob itm adds item itm to buffer sob.

Convert text to attributes and add them to an attribute list

add_uint16_be b i appends a binary big-endian unsigned 16-bit integer i to b.

add_uint16_le b i appends a binary little-endian unsigned 16-bit integer i to b.

add_uint16_ne b i appends a binary native-endian unsigned 16-bit integer i to b.

add_uint8 b i appends a binary unsigned 8-bit integer i to b.

add_utf_16be_uchar b u appends the UTF-16BE encoding of u at the end of buffer b.

add_utf_16le_uchar b u appends the UTF-16LE encoding of u at the end of buffer b.

add_utf_8_uchar b u appends the UTF-8 encoding of u at the end of buffer b.

Whether afl-fuzz instrumentation is generated by default

Schedule a SIGALRM signal after the given number of seconds.

Schedule a SIGALRM signal after the given number of seconds.

Prints an arbitrary alert.

Hook for intercepting alerts.

Align the documentation strings by inserting spaces at the first alignment separator (tab or, if tab is not found, space), according to the length of the keyword.

Return the list of compilation units that form the main program together with those that have been dynamically loaded via loadfile (and not via loadfile_private).

Return the total number of bytes allocated since the program was started.

allow_only units sets the list of allowed units to be the intersection of the existing allowed units and the given list of units.

Govern whether unsafe object files are allowed to be dynamically linked.

always v returns an event that is always ready for synchronization.

append xs ys is the sequence xs followed by the sequence ys

Concatenate two lists.

Concatenate two lists.

append v1 v2 returns a fresh floatarray containing the concatenation of the floatarrays v1 and v2.

append v1 v2 returns a fresh floatarray containing the concatenation of the floatarrays v1 and v2.

append v1 v2 returns a fresh array containing the concatenation of the arrays v1 and v2.

append v1 v2 returns a fresh array containing the concatenation of the arrays v1 and v2.

Apply a mapper (parametrized by the unit name) to a dumped parsetree found in the source file and put the result in the target file.

If restore = true (the default), cookies set by external rewriters will be kept for later calls.

Name of the ar command, or "" if not needed (MSVC)

Name of processor type for the native-code compiler

Argument.

The command line arguments given to the process.

Return the zero-dimensional Bigarray corresponding to the given generic Bigarray.

Return the one-dimensional Bigarray corresponding to the given generic Bigarray.

Return the two-dimensional Bigarray corresponding to the given generic Bigarray.

Return the three-dimensional Bigarray corresponding to the given generic Bigarray.

Whether the assembler supports --debug-prefix-map

Arc sine.

Arc sine.

The assembler (and flags) to use for assembling ocamlopt-generated code.

Whether assembler understands CFI directives

Same as printf above, but instead of printing on a formatter, returns a string containing the result of formatting the arguments.

assoc a l returns the value associated with key a in the list of pairs l.

assoc a l returns the value associated with key a in the list of pairs l.

assoc_opt a l returns the value associated with key a in the list of pairs l.

assoc_opt a l returns the value associated with key a in the list of pairs l.

Same as ListLabels.assoc, but uses physical equality instead of structural equality to compare keys.

Same as List.assoc, but uses physical equality instead of structural equality to compare keys.

Same as ListLabels.assoc_opt, but uses physical equality instead of structural equality to compare keys.

Same as List.assoc_opt, but uses physical equality instead of structural equality to compare keys.

Magic number for file holding an implementation syntax tree

Magic number for file holding an interface syntax tree

Register the given function to be called at program termination time.

Arc tangent.

Arc tangent.

atan2 y x returns the arc tangent of y /. x.

atan2 y x returns the arc tangent of y /. x.

Encode a warning message into an 'ocaml.ppwarning' attribute which can be inserted in a generated Parsetree.

Backend type currently executing the OCaml program.

Returns the slots of a raw backtrace, or None if none of them contain useful information.

Returns the slots of a single raw backtrace entry, or None if this entry lacks debug information.

Printexc.backtrace_status() returns true if exception backtraces are currently recorded, false if not.

Split a file name into directory name / base file name.

Scanning.beginning_of_input ic tests the beginning of input condition of the given Scanf.Scanning.in_channel formatted input channel.

Detects the terminal capabilities and selects an adequate printer

Whether the machine currently executing the Caml program is big-endian.

Bind a socket to an address.

Bind a socket to an address.

bind r f is f v if r is Ok v and r if r is Error _.

bind o f is f v if o is Some v and None if o is None.

Return the list of all bindings of the given map.

Return the list of all bindings of the given map.

Return 30 random bits in a nonnegative integer.

Return the internal representation of the given float according to the IEEE 754 floating-point 'double format' bit layout.

Return the internal representation of the given float according to the IEEE 754 floating-point 'single format' bit layout.

Weak.blit ar1 off1 ar2 off2 len copies len weak pointers from ar1 (starting at off1) to ar2 (starting at off2).

blit src src_pos dst dst_pos len copies len bytes from the string src, starting at index src_pos, to byte sequence dst, starting at character number dst_pos.

blit ~src ~src_pos ~dst ~dst_pos ~len copies len bytes from the string src, starting at index src_pos, to byte sequence dst, starting at character number dst_pos.

blit ~src ~src_pos ~dst ~dst_pos ~len copies len elements from floatarray src, starting at element number src_pos, to floatarray dst, starting at element number dst_pos.

blit src src_pos dst dst_pos len copies len elements from floatarray src, starting at element number src_pos, to floatarray dst, starting at element number dst_pos.

blit ~src ~src_pos ~dst ~dst_pos ~len copies len bytes from sequence src, starting at index src_pos, to sequence dst, starting at index dst_pos.

blit src src_pos dst dst_pos len copies len bytes from sequence src, starting at index src_pos, to sequence dst, starting at index dst_pos.

Buffer.blit src srcoff dst dstoff len copies len characters from the current contents of the buffer src, starting at offset srcoff to dst, starting at character dstoff.

Copy the first Bigarray to the second Bigarray.

Copy the first Bigarray to the second Bigarray.

Copy the first Bigarray to the second Bigarray.

Copy the first Bigarray to the second Bigarray.

Copy all elements of a Bigarray in another Bigarray.

blit ~src ~src_pos ~dst ~dst_pos ~len copies len elements from array src, starting at element number src_pos, to array dst, starting at element number dst_pos.

blit src src_pos dst dst_pos len copies len elements from array src, starting at element number src_pos, to array dst, starting at element number dst_pos.

Same as Ephemeron.K1.blit_data

Same as Ephemeron.K1.blit_data

Same as Ephemeron.K1.blit_data

Ephemeron.K1.blit_data eph1 eph2 sets the data of eph2 with the data of eph1.

Same as Ephemeron.K1.blit_key

Same as Ephemeron.K1.blit_key

Ephemeron.K1.blit_key eph1 eph2 sets the key of eph2 with the key of eph1.

Same as Ephemeron.K1.blit_key

Same as Ephemeron.K1.blit_key

Same as Ephemeron.K1.blit_key

blit ~src ~src_pos ~dst ~dst_pos ~len copies len bytes from string src, starting at index src_pos, to byte sequence dst, starting at index dst_pos.

blit src src_pos dst dst_pos len copies len bytes from string src, starting at index src_pos, to byte sequence dst, starting at index dst_pos.

bom is U+FEFF, the byte order mark (BOM) character.

These functions are the same as the basic functions, except that they use (and update) the given PRNG state instead of the default one.

Random.bool () returns true or false with probability 0.5 each.

Same as bool_of_string_opt, but raise Invalid_argument "bool_of_string" instead of returning None.

Convert the given string to a boolean.

Same as Str.bounded_split_delim, but returns the delimiters as well as the substrings contained between delimiters.

Same as Str.split, but splits into at most n substrings, where n is the extra integer parameter.

Same as Str.bounded_split, but occurrences of the delimiter at the beginning and at the end of the string are recognized and returned as empty strings in the result.

Same as Printf.fprintf, but instead of printing on an output channel, append the formatted arguments to the given extensible buffer (see module Buffer).

broadcast c restarts all processes waiting on the condition variable c.

bscanf_format ic fmt f reads a format string token from the formatted input channel ic, according to the given format string fmt, and applies f to the resulting format string value.

The C libraries to link with custom runtimes

Return the digest of the given byte sequence.

The compiler to use for compiling C files

Whether the C compiler supports -fdebug-prefix-map

Name of the option of the C compiler for specifying the output file

capitalize_ascii s is s with the first character set to uppercase, using the US-ASCII character set.

capitalize_ascii s is s with the first character set to uppercase, using the US-ASCII character set.

Return a copy of the argument, with the first character set to uppercase, using the US-ASCII character set.

Return a copy of the argument, with the first character set to uppercase, using the US-ASCII character set.

Return the number of elements of a set.

Return the number of elements of a set.

Return the number of bindings of a map.

Return the number of bindings of a map.

cat s1 s2 concatenates s1 and s2 and returns the result as a new byte sequence.

cat s1 s2 concatenates s1 and s2 and returns the result as a new byte sequence.

Printexc.catch fn x is similar to Printexc.print, but aborts the program with exit code 2 after printing the uncaught exception.

catch_break governs whether interactive interrupt (ctrl-C) terminates the program or raises the Break exception.

The "kind" of the C compiler, assembler and linker used: one of "cc" (for Unix-style C compilers) "msvc" (for Microsoft Visual C++ and MASM)

Round above to an integer value.

Round above to an integer value.

Array3.change_layout a layout returns a Bigarray with the specified layout, sharing the data with a (and hence having the same dimensions as a).

Array2.change_layout a layout returns a Bigarray with the specified layout, sharing the data with a (and hence having the same dimensions as a).

Array1.change_layout a layout returns a Bigarray with the specified layout, sharing the data with a (and hence having the same dimension as a).

Array0.change_layout a layout returns a Bigarray with the specified layout, sharing the data with a.

Genarray.change_layout a layout returns a Bigarray with the specified layout, sharing the data with a (and hence having the same dimensions as a).

If len is nonnegative, Digest.channel ic len reads len characters from channel ic and returns their digest, or raises End_of_file if end-of-file is reached before len characters are read.

As shown by the types of the values above, Bigarrays of kind float32_elt and float64_elt are accessed using the OCaml type float.

Return the character with the given ASCII code.

Change the process working directory.

Change the process working directory.

Change the current working directory of the process.

Weak.check ar n returns true if the nth cell of ar is full, false if it is empty.

check_current kind info checks that the provided magic info is the current version of kind's magic header.

Same as Ephemeron.K1.check_data

Same as Ephemeron.K1.check_data

Same as Ephemeron.K1.check_data

Ephemeron.K1.check_data eph returns true if the data of the eph is full, false if it is empty.

Check if the formatter geometry is valid: 1 < max_indent < margin

Same as Ephemeron.K1.check_key

Same as Ephemeron.K1.check_key

Ephemeron.K1.check_key eph returns true if the key of the eph is full, false if it is empty.

Same as Ephemeron.K1.check_key

Same as Ephemeron.K1.check_key

check_suffix name suff returns true if the filename name ends with the suffix suff.

Change the permissions of the named file.

Change the permissions of the named file.

choose evl returns the event that is the alternative of all the events in the list evl.

Return one element of the given set, or raise Not_found if the set is empty.

Return one element of the given set, or raise Not_found if the set is empty.

Return one binding of the given map, or raise Not_found if the map is empty.

Return one binding of the given map, or raise Not_found if the map is empty.

Return one element of the given set, or None if the set is empty.

Return one element of the given set, or None if the set is empty.

Return one binding of the given map, or None if the map is empty.

Return one binding of the given map, or None if the map is empty.

Same as Filename.remove_extension, but raise Invalid_argument if the given name has an empty extension.

chop_suffix name suff removes the suffix suff from the filename name.

chop_suffix_opt ~suffix filename removes the suffix from the filename if possible, or returns None if the filename does not end with the suffix.

Change the owner uid and owner gid of the named file.

Change the owner uid and owner gid of the named file.

Return the character with the given ASCII code.

Change the process root directory.

Change the process root directory.

Return the class of the given floating-point number: normal, subnormal, zero, infinite, or not a number.

Return the class of the given floating-point number: normal, subnormal, zero, infinite, or not a number.

remove all dead bindings.

remove all dead bindings.

Remove all elements from the table.

Discard all elements from a stack.

Discard all elements from a queue.

Empty a hash table.

Empty a hash table.

Empty the buffer.

Clear the ``close-on-exec'' flag on the given descriptor.

Clear the ``close-on-exec'' flag on the given descriptor.

Clear the ``non-blocking'' flag on the given descriptor.

Clear the ``non-blocking'' flag on the given descriptor.

Empty the parser stack.

clear_symbolic_output_buffer sob resets buffer sob.

Close a file descriptor.

Close a file descriptor.

Closes the most recently open pretty-printing box.

Closes the in_channel associated with the given Scanf.Scanning.in_channel formatted input channel.

Close the given channel.

Same as close_in, but ignore all errors.

Close the given channel, flushing all buffered write operations.

Same as close_out, but ignore all errors.

Close channels opened by UnixLabels.open_process, wait for the associated command to terminate, and return its termination status.

Close channels opened by Unix.open_process, wait for the associated command to terminate, and return its termination status.

Close channels opened by UnixLabels.open_process_full, wait for the associated command to terminate, and return its termination status.

Close channels opened by Unix.open_process_full, wait for the associated command to terminate, and return its termination status.

Close channels opened by UnixLabels.open_process_in, wait for the associated command to terminate, and return its termination status.

Close channels opened by Unix.open_process_in, wait for the associated command to terminate, and return its termination status.

Close channels opened by UnixLabels.open_process_out, wait for the associated command to terminate, and return its termination status.

Close channels opened by Unix.open_process_out, wait for the associated command to terminate, and return its termination status.

pp_close_stag ppf () closes the most recently opened semantic tag t.

Closes the most recently opened tabulation box.

Close a directory descriptor.

Close a directory descriptor.

Magic number for archive files

Magic number for compiled interface files

Magic number for object bytecode files

Magic number for compiled interface files

Magic number for compilation unit descriptions

Magic number for libraries of compilation unit descriptions

Magic number for dynamically-loadable plugins

Return the ASCII code of the argument.

Transform a pair of lists into a list of pairs: combine [a1; ...; an] [b1; ...; bn] is [(a1,b1); ...; (an,bn)].

Transform a pair of lists into a list of pairs: combine [a1; ...; an] [b1; ...; bn] is [(a1,b1); ...; (an,bn)].

Execute the given shell command and return its exit code.

Perform a full major collection and compact the heap.

The comparison function for target integers, with the same specification as compare.

The lexicographic order supported by the provided order.

compare u1 u2 is 0.

compare u u' is Stdlib.compare u u'.

compare s0 s1 sorts s0 and s1 in lexicographical order.

compare s0 s1 sorts s0 and s1 in lexicographical order.

A total ordering function over the set elements.

Total ordering between sets.

compare ~ok ~error r0 r1 totally orders r0 and r1 using ok and error to respectively compare values wrapped by Ok _ and Error _.

compare cmp o0 o1 is a total order on options using cmp to compare values wrapped by Some _.

The comparison function for native integers, with the same specification as compare.

A total ordering function over the set elements.

Total ordering between sets.

A total ordering function over the keys.

Total ordering between maps.

A total ordering function over the keys.

Total ordering between maps.

compare cmp [a1; ...; an] [b1; ...; bm] performs a lexicographic comparison of the two input lists, using the same 'a -> 'a -> int interface as compare:

compare cmp [a1; ...; an] [b1; ...; bm] performs a lexicographic comparison of the two input lists, using the same 'a -> 'a -> int interface as compare:

The comparison function for 64-bit integers, with the same specification as compare.

The comparison function for 32-bit integers, with the same specification as compare.

compare x y is compare x y but more efficient.

compare x y returns 0 if x is equal to y, a negative integer if x is less than y, and a positive integer if x is greater than y.

compare ~left ~right e0 e1 totally orders e0 and e1 using left and right to respectively compare values wrapped by Left _ and Right _.

The comparison function for 16-character digest, with the same specification as compare and the implementation shared with String.compare.

The comparison function for characters, with the same specification as compare.

The comparison function for byte sequences, with the same specification as compare.

The comparison function for byte sequences, with the same specification as compare.

compare b0 b1 is a total order on boolean values.

compare x y returns 0 if x is equal to y, a negative integer if x is less than y, and a positive integer if x is greater than y.

compare_and_set r seen v sets the new value of r to v only if its current value is physically equal to seen -- the comparison and the set occur atomically.

Compare the length of a list to an integer.

Compare the length of a list to an integer.

Compare the lengths of two lists.

Compare the lengths of two lists.

See Bigarray.char.

See Bigarray.char.

concat sep ss concatenates the list of strings ss, inserting the separator string sep between each.

concat ~sep ss concatenates the list of strings ss, inserting the separator string sep between each.

Concatenate a list of lists.

Concatenate a list of lists.

Same as Float.ArrayLabels.append, but concatenates a list of floatarrays.

Same as Float.Array.append, but concatenates a list of floatarrays.

concat dir file returns a file name that designates file file in directory dir.

concat ~sep sl concatenates the list of byte sequences sl, inserting the separator byte sequence sep between each, and returns the result as a new byte sequence.

concat sep sl concatenates the list of byte sequences sl, inserting the separator byte sequence sep between each, and returns the result as a new byte sequence.

Same as ArrayLabels.append, but concatenates a list of arrays.

Same as Array.append, but concatenates a list of arrays.

concat_map ~f l gives the same result as ListLabels.concat (ListLabels.map f l).

concat_map f l gives the same result as List.concat (List.map f l).

the configuration value of a variable, if it exists

Conjugate: given the complex x + i.y, returns x - i.y.

Connect a socket to an address.

Connect a socket to an address.

cons x xs is the sequence containing the element x followed by the sequence xs

cons x xs is x :: xs

cons x xs is x :: xs

const c is a function that always returns the value c.

This function parses a syntactically valid path for a variant constructor.

contains s c is String.contains_from s 0 c.

contains s c is String.contains_from s 0 c.

contains s c tests if byte c appears in s.

contains s c tests if byte c appears in s.

contains_from s start c is true if and only if c appears in s after position start.

contains_from s start c is true if and only if c appears in s after position start.

contains_from s start c tests if byte c appears in s after position start.

contains_from s start c tests if byte c appears in s after position start.

Return a copy of the current contents of the buffer.

Extracts the user-friendly backtrace_slot from a low-level raw_backtrace_slot.

Return a copy of the given stack.

Return a copy of the given state.

Return a copy of the given queue.

Oo.copy o returns a copy of object o, that is a fresh object with the same methods and instance variables as o.

Return a copy of the given hashtable.

Return a copy of the given hashtable.

copy a returns a copy of a, that is, a fresh floatarray containing the same elements as a.

copy a returns a copy of a, that is, a fresh floatarray containing the same elements as a.

Return a new byte sequence that contains the same bytes as the argument.

Return a new byte sequence that contains the same bytes as the argument.

copy a returns a copy of a, that is, a fresh array containing the same elements as a.

copy a returns a copy of a, that is, a fresh array containing the same elements as a.

copy_sign x y returns a float whose absolute value is that of x and whose sign is that of y.

copysign x y returns a float whose absolute value is that of x and whose sign is that of y.

Cosine.

Cosine.

Hyperbolic cosine.

Hyperbolic cosine.

Count the number of elements in the table.

Return the current count of the stream elements, i.e.

Return (minor_words, promoted_words, major_words).

Return a new mutex.

Return a new condition variable.

Thread.create funct arg creates a new thread of control, in which the function application funct arg is executed concurrently with the other threads of the program.

create n creates a new empty weak hash set, of initial size n.

Weak.create n returns a new weak array of length n.

Return a new stack, initially empty.

Return a new queue, initially empty.

create n returns an ephemeron with n keys.

Hashtbl.create n creates a new, empty hash table, with initial size n.

Hashtbl.create n creates a new, empty hash table, with initial size n.

create n returns a fresh floatarray of length n, with uninitialized data.

create n returns a fresh floatarray of length n, with uninitialized data.

Same as Ephemeron.K1.create

Same as Ephemeron.K1.create

Ephemeron.K1.create () creates an ephemeron with one key.

create n returns a new byte sequence of length n.

create n returns a new byte sequence of length n.

create n returns a fresh buffer, initially empty.

Array3.create kind layout dim1 dim2 dim3 returns a new Bigarray of three dimensions, whose size is dim1 in the first dimension, dim2 in the second dimension, and dim3 in the third.

Array2.create kind layout dim1 dim2 returns a new Bigarray of two dimensions, whose size is dim1 in the first dimension and dim2 in the second dimension.

Array1.create kind layout dim returns a new Bigarray of one dimension, whose size is dim.

Array0.create kind layout returns a new Bigarray of zero dimension.

Genarray.create kind layout dimensions returns a new Bigarray whose element kind is determined by the parameter kind (one of float32, float64, int8_signed, etc) and whose layout is determined by the parameter layout (one of c_layout or fortran_layout).

create_alarm f will arrange for f to be called at the end of each major GC cycle, starting with the current cycle or the next one.

create_float n returns a fresh float array of length n, with uninitialized data.

create_float n returns a fresh float array of length n, with uninitialized data.

create_process ~prog ~args ~stdin ~stdout ~stderr forks a new process that executes the program in file prog, with arguments args.

create_process prog args stdin stdout stderr forks a new process that executes the program in file prog, with arguments args.

create_process_env ~prog ~args ~env ~stdin ~stdout ~stderr works as UnixLabels.create_process, except that the extra argument env specifies the environment passed to the program.

create_process_env prog args env stdin stdout stderr works as Unix.create_process, except that the extra argument env specifies the environment passed to the program.

Get the location of the current token from the lexbuf.

Position (in Sys.argv) of the argument being processed.

The conventional name for the current directory (e.g.

the current magic number of each kind

the current version of each kind

String.cut_at s c returns a pair containing the sub-string before the first occurrence of c in s, and the sub-string after the first occurrence of c in s.

True if Sys.os_type = "Cygwin".

See Marshal.header_size.

Returns the list of --debug-prefix-map flags to be passed to the assembler, built from the BUILD_PATH_PREFIX_MAP environment variable.

decr r atomically decrements the value of r by 1.

Decrement the integer contained in the given reference.

Original alert reporter for use in hooks.

Name of executable produced by linking if none is given with -o, e.g.

A default iterator, which implements a "do not do anything" mapping.

Default value for all optional location arguments.

A default mapper, which implements a "deep identity" mapping.

Original report printer for use in hooks.

Whether the compiler was configured to use the -safe-string or -unsafe-string compile-time option by default.

Printexc.default_uncaught_exception_handler prints the exception and backtrace on standard error output.

Original warning reporter for use in hooks.

delay d suspends the execution of the calling thread for d seconds.

delete_alarm a will stop the calls to the function associated to a.

delete_eol_spaces s returns a fresh copy of s with any end of line spaces removed.

Prints a deprecation alert.

Return the descriptor corresponding to an input channel.

Return the descriptor corresponding to an input channel.

Return the descriptor corresponding to an output channel.

Return the descriptor corresponding to an output channel.

did_you_mean ppf get_choices hints that the user may have meant one of the option returned by calling get_choices.

Set difference: diff s1 s2 contains the elements of s1 that are not in s2.

Set difference: diff s1 s2 contains the elements of s1 that are not in s2.

Return the size (dimension) of the given one-dimensional Bigarray.

Return the first dimension of the given three-dimensional Bigarray.

Return the first dimension of the given two-dimensional Bigarray.

Return the second dimension of the given three-dimensional Bigarray.

Return the second dimension of the given two-dimensional Bigarray.

Return the third dimension of the given three-dimensional Bigarray.

Genarray.dims a returns all dimensions of the Bigarray a, as an array of integers of length Genarray.num_dims a.

The directory separator (e.g.

See Filename.basename.

Test if two sets are disjoint.

Test if two sets are disjoint.

disjoint_union m1 m2 contains all bindings from m1 and m2.

Integer division.

Integer division.

Integer division.

Integer division.

div x y is the division x / y.

Floating-point division.

Division

Create a docstring

Get the text of a docstring

Get the location of a docstring

domain a is a fresh copy of an initial segment of the array a whose length is extent a.

Return the socket domain adequate for the given socket address.

Return the socket domain adequate for the given socket address.

Same as Format.fprintf, except the formatter is the last argument.

Same as drop_ppx_context_str, but for signatures.

Drop the ocaml.ppx.context attribute from a structure.

A value of type position, guaranteed to be different from any valid position.

Return a new file descriptor referencing the same file as the given descriptor.

Return a new file descriptor referencing the same file as the given descriptor.

dup2 ~src ~dst duplicates src to dst, closing dst if already opened.

dup2 src dst duplicates src to dst, closing dst if already opened.

edit_distance a b cutoff computes the edit distance between strings a and b.

Return the list of all elements of the given set.

Return the list of all elements of the given set.

Return () if the stream is empty, else raise Stream.Failure.

The empty set.

The empty sequence, containing no elements.

The empty set.

The empty map.

The empty map.

A byte sequence of size 0.

A byte sequence of size 0.

Control whether the OCaml runtime system can emit warnings on stderr.

Scanning.end_of_input ic tests the end-of-input condition of the given Scanf.Scanning.in_channel formatted input channel.

Return the process environment, as an array of strings with the format ``variable=value''.

Return the process environment, as an array of strings with the format ``variable=value''.

Same as Printf.fprintf, but output on stderr.

Same as fprintf above, but output on err_formatter.

The difference between 1.0 and the smallest exactly representable floating-point number greater than 1.0.

The difference between 1.0 and the smallest exactly representable floating-point number greater than 1.0.

The equal function for target ints.

Returns true if and only if the given lists have the same length and content with respect to the given equality function.

equal u1 u2 is true.

equal u u' is u = u'.

equal s0 s1 is true if and only if s0 and s1 are character-wise equal.

equal s0 s1 is true if and only if s0 and s1 are character-wise equal.

equal s1 s2 tests whether the sets s1 and s2 are equal, that is, contain equal elements.

equal ~ok ~error r0 r1 tests equality of r0 and r1 using ok and error to respectively compare values wrapped by Ok _ and Error _.

equal eq o0 o1 is true if and only if o0 and o1 are both None or if they are Some v0 and Some v1 and eq v0 v1 is true.

The equal function for native ints.

equal s1 s2 tests whether the sets s1 and s2 are equal, that is, contain equal elements.

equal ~cmp m1 m2 tests whether the maps m1 and m2 are equal, that is, contain equal keys and associate them with equal data.

The equality predicate used to compare keys.

The equality predicate used to compare keys.

equal cmp m1 m2 tests whether the maps m1 and m2 are equal, that is, contain equal keys and associate them with equal data.

equal eq [a1; ...; an] [b1; ..; bm] holds when the two input lists have the same length, and for each pair of elements ai, bi at the same position we have eq ai bi.

equal eq [a1; ...; an] [b1; ..; bm] holds when the two input lists have the same length, and for each pair of elements ai, bi at the same position we have eq ai bi.

The equal function for int64s.

The equal function for int32s.

equal x y is true if and only if x = y.

The equality predicate used to compare keys.

The equality predicate used to compare keys.

The equal function for floating-point numbers, compared using Float.compare.

equal ~left ~right e0 e1 tests equality of e0 and e1 using left and right to respectively compare values wrapped by Left _ and Right _.

The equal function for 16-character digest.

The equal function for chars.

The equality function for byte sequences.

The equality function for byte sequences.

equal b0 b1 is true if and only if b0 and b1 are both true or both false.

A formatter to write to standard error.

error e is Error e.

Convert an error description to a printable message.

Return a string describing the given error code.

Return a string describing the given error code.

escaped s is s with special characters represented by escape sequences, following the lexical conventions of OCaml.

escaped s is s with special characters represented by escape sequences, following the lexical conventions of OCaml.

Return a string representing the given character, with special characters escaped following the lexical conventions of OCaml.

Return a copy of the argument, with special characters represented by escape sequences, following the lexical conventions of OCaml.

Return a copy of the argument, with special characters represented by escape sequences, following the lexical conventions of OCaml.

Establish a server on the given address.

Establish a server on the given address.

eventlog_pause () will pause the collection of traces in the runtime.

eventlog_resume () will resume the collection of traces in the runtime.

Set a new value for the atomic reference, and return the current value.

Magic number for bytecode executable files

The name of the file containing the executable currently running.

execv ~prog ~args execute the program in file prog, with the arguments args, and the current process environment.

execv prog args execute the program in file prog, with the arguments args, and the current process environment.

Same as UnixLabels.execv, except that the third argument provides the environment to the program executed.

Same as Unix.execv, except that the third argument provides the environment to the program executed.

Same as UnixLabels.execv, except that the program is searched in the path.

Same as Unix.execv, except that the program is searched in the path.

Same as UnixLabels.execve, except that the program is searched in the path.

Same as Unix.execve, except that the program is searched in the path.

exists f s checks if at least one element of the set satisfies the predicate f.

exists ~f s checks if at least one element of the set satisfies the predicate f.

exists ~f m checks if at least one binding of the map satisfies the predicate f.

exists f m checks if at least one binding of the map satisfies the predicate f.

exists ~f [a1; ...; an] checks if at least one element of the list satisfies the predicate f.

exists f [a1; ...; an] checks if at least one element of the list satisfies the predicate f.

exists f [|a1; ...; an|] checks if at least one element of the floatarray satisfies the predicate f.

exists f [|a1; ...; an|] checks if at least one element of the floatarray satisfies the predicate f.

exists ~f [|a1; ...; an|] checks if at least one element of the array satisfies the predicate f.

exists f [|a1; ...; an|] checks if at least one element of the array satisfies the predicate f.

Same as ListLabels.exists, but for a two-argument predicate.

Same as List.exists, but for a two-argument predicate.

Same as ArrayLabels.exists, but for a two-argument predicate.

Same as Array.exists, but for a two-argument predicate.

Terminate prematurely the currently executing thread.

Terminate the process, returning the given status code to the operating system: usually 0 to indicate no errors, and a small positive integer to indicate failure.

Printexc.exn_slot_id returns an integer which uniquely identifies the constructor used to create the exception value exn (in the current runtime).

Printexc.exn_slot_name exn returns the internal name of the constructor used to create the exception value exn.

Exponential.

Exponentiation.

Exponential.

Produces an explanation for a parse error.

Provides an explanation of the unexpected_error.

expm1 x computes exp x -. 1.0, giving numerically-accurate results even if x is close to 0.0.

expm1 x computes exp x -. 1.0, giving numerically-accurate results even if x is close to 0.0.

Extension for assembler files, e.g.

Extension for dynamically-loaded libraries, e.g.

Extension for executable programs, e.g.

Extension for library files, e.g.

Extension for object files, e.g.

extend s ~left ~right returns a new byte sequence that contains the bytes of s, with left uninitialized bytes prepended and right uninitialized bytes appended to it.

extend s left right returns a new byte sequence that contains the bytes of s, with left uninitialized bytes prepended and right uninitialized bytes appended to it.

This function parse syntactically valid path for an extended module.

extension name is the shortest suffix ext of name0 where:

Encode an error into an 'ocaml.error' extension node which can be inserted in a generated Parsetree.

extent a is the length of an initial segment of the array a that is sufficiently large to contain all set operations ever performed.

Raise exception Failure with the given string.

Same as ListLabels.sort or ListLabels.stable_sort, whichever is faster on typical input.

Same as List.sort or List.stable_sort, whichever is faster on typical input.

Same as Float.ArrayLabels.sort or Float.ArrayLabels.stable_sort, whichever is faster on typical input.

Same as Float.Array.sort or Float.Array.stable_sort, whichever is faster on typical input.

Same as ArrayLabels.sort or ArrayLabels.stable_sort, whichever is faster on typical input.

Same as Array.sort or Array.stable_sort, whichever is faster on typical input.

Change the permissions of an opened file.

Change the permissions of an opened file.

Change the owner uid and owner gid of an opened file.

Change the owner uid and owner gid of an opened file.

fetch_and_add r n atomically increments the value of r by n, and returns the current value (before the increment).

Return the digest of the file whose name is given.

Test if a file with the given name exists.

All the files in that directory.

Weak.fill ar ofs len el sets to el all pointers of ar from ofs to ofs + len - 1.

fill a ~pos ~len x modifies the floatarray a in place, storing x in elements number pos to pos + len - 1.

fill a pos len x modifies the floatarray a in place, storing x in elements number pos to pos + len - 1.

fill s ~pos ~len c modifies s in place, replacing len characters with c, starting at pos.

fill s pos len c modifies s in place, replacing len characters with c, starting at pos.

Fill the given Bigarray with the given value.

Fill the given Bigarray with the given value.

Fill the given Bigarray with the given value.

Fill the given Bigarray with the given value.

Set all elements of a Bigarray to a given value.

fill a ~pos ~len x modifies the array a in place, storing x in elements number pos to pos + len - 1.

fill a pos len x modifies the array a in place, storing x in elements number pos to pos + len - 1.

filter f s returns the set of all elements in s that satisfy predicate f.

Remove from the sequence the elements that do not satisfy the given predicate.

filter ~f s returns the set of all elements in s that satisfy predicate f.

filter ~f m returns the map with all the bindings in m that satisfy predicate p.

filter f m returns the map with all the bindings in m that satisfy predicate p.

filter ~f l returns all the elements of the list l that satisfy the predicate f.

filter f l returns all the elements of the list l that satisfy the predicate f.

filter_map f s returns the set of all v such that f x = Some v for some element x of s.

Apply the function to every element; if f x = None then x is dropped; if f x = Some y then y is returned.

filter_map ~f s returns the set of all v such that f x = Some v for some element x of s.

filter_map ~f m applies the function f to every binding of m, and builds a map from the results.

filter_map f m applies the function f to every binding of m, and builds a map from the results.

filter_map ~f l applies f to every element of l, filters out the None elements and returns the list of the arguments of the Some elements.

filter_map f l applies f to every element of l, filters out the None elements and returns the list of the arguments of the Some elements.

Hashtbl.filter_map_inplace ~f tbl applies f to all bindings in table tbl and update each binding depending on the result of f.

Hashtbl.filter_map_inplace f tbl applies f to all bindings in table tbl and update each binding depending on the result of f.

Same as ListLabels.filter, but the predicate is applied to the index of the element as first argument (counting from 0), and the element itself as second argument.

Same as List.filter, but the predicate is applied to the index of the element as first argument (counting from 0), and the element itself as second argument.

finalise f v registers f as a finalisation function for v.

same as Gc.finalise except the value is not given as argument.

A finalisation function may call finalise_release to tell the GC that it can launch the next finalisation function without waiting for the current one to return.

Locate a file in the load path.

find t x returns an instance of x found in t.

find x s returns the element of s equal to x (according to Ord.compare), or raise Not_found if no such element exists.

find x s returns the element of s equal to x (according to Ord.compare), or raise Not_found if no such element exists.

find x m returns the current value of x in m, or raises Not_found if no binding for x exists.

Hashtbl.find tbl x returns the current binding of x in tbl, or raises Not_found if no such binding exists.

find x m returns the current value of x in m, or raises Not_found if no binding for x exists.

find ~f l returns the first element of the list l that satisfies the predicate f.

find f l returns the first element of the list l that satisfies the predicate f.

Hashtbl.find tbl x returns the current binding of x in tbl, or raises Not_found if no such binding exists.

find_all t x returns a list of all the instances of x found in t.

Hashtbl.find_all tbl x returns the list of all data associated with x in tbl.

find_all is another name for ListLabels.filter.

find_all is another name for List.filter.

Hashtbl.find_all tbl x returns the list of all data associated with x in tbl.

Returns the longest list that, with respect to the provided equality function, is a prefix of both of the given lists.

find_first f s, where f is a monotonically increasing function, returns the lowest element e of s such that f e, or raises Not_found if no such element exists.

find_first ~f s, where f is a monotonically increasing function, returns the lowest element e of s such that f e, or raises Not_found if no such element exists.

find_first ~f m, where f is a monotonically increasing function, returns the binding of m with the lowest key k such that f k, or raises Not_found if no such key exists.

find_first f m, where f is a monotonically increasing function, returns the binding of m with the lowest key k such that f k, or raises Not_found if no such key exists.

find_first_opt f s, where f is a monotonically increasing function, returns an option containing the lowest element e of s such that f e, or None if no such element exists.

find_first_opt ~f s, where f is a monotonically increasing function, returns an option containing the lowest element e of s such that f e, or None if no such element exists.