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author | Maxence Guesdon <maxence.guesdon@inria.fr> | 2001-10-26 22:38:48 +0000 |
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committer | Maxence Guesdon <maxence.guesdon@inria.fr> | 2001-10-26 22:38:48 +0000 |
commit | b95796f46183761597e00edfaa495134f75a2559 (patch) | |
tree | 384497c174f6362c20f93dac13f0b8d64dfc3fb9 /stdlib/int32.mli | |
parent | 7c6c78a292f25df48d3dd4197a065231fc090292 (diff) | |
download | ocaml-b95796f46183761597e00edfaa495134f75a2559.tar.gz |
Modification emplacement et syntaxe commentaires pour OCamldoc
git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@3926 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Diffstat (limited to 'stdlib/int32.mli')
-rw-r--r-- | stdlib/int32.mli | 144 |
1 files changed, 84 insertions, 60 deletions
diff --git a/stdlib/int32.mli b/stdlib/int32.mli index eaa5aee575..dbb1c2814b 100644 --- a/stdlib/int32.mli +++ b/stdlib/int32.mli @@ -12,9 +12,9 @@ (* $Id$ *) -(* Module [Int32]: 32-bit integers *) +(** 32-bit integers. -(* This module provides operations on the type [int32] + This module provides operations on the type [int32] of signed 32-bit integers. Unlike the built-in [int] type, the type [int32] is guaranteed to be exactly 32-bit wide on all platforms. All arithmetic operations over [int32] are taken @@ -25,94 +25,118 @@ [int32] are generally slower than those on [int]. Use [int32] only when the application requires exact 32-bit arithmetic. *) +(** The 32-bit integer 0. *) val zero : int32 + +(** The 32-bit integer 1. *) val one : int32 + +(** The 32-bit integer -1. *) val minus_one : int32 - (* The 32-bit integers 0, 1, -1. *) +(** Unary negation. *) external neg : int32 -> int32 = "%int32_neg" - (* Unary negation. *) + +(** Addition. *) external add : int32 -> int32 -> int32 = "%int32_add" - (* Addition. *) + +(** Subtraction. *) external sub : int32 -> int32 -> int32 = "%int32_sub" - (* Subtraction. *) + +(** Multiplication. *) external mul : int32 -> int32 -> int32 = "%int32_mul" - (* Multiplication. *) + +(** Integer division. Raise [Division_by_zero] if the second + argument is zero. *) external div : int32 -> int32 -> int32 = "%int32_div" - (* Integer division. Raise [Division_by_zero] if the second - argument is zero. *) + +(** Integer remainder. If [x >= 0] and [y > 0], the result + of [Int32.rem x y] satisfies the following properties: + [0 <= Int32.rem x y < y] and + [x = Int32.add (Int32.mul (Int32.div x y) y) (Int32.rem x y)]. + If [y = 0], [Int32.rem x y] raises [Division_by_zero]. + If [x < 0] or [y < 0], the result of [Int32.rem x y] is + not specified and depends on the platform. *) external rem : int32 -> int32 -> int32 = "%int32_mod" - (* Integer remainder. If [x >= 0] and [y > 0], the result - of [Int32.rem x y] satisfies the following properties: - [0 <= Int32.rem x y < y] and - [x = Int32.add (Int32.mul (Int32.div x y) y) (Int32.rem x y)]. - If [y = 0], [Int32.rem x y] raises [Division_by_zero]. - If [x < 0] or [y < 0], the result of [Int32.rem x y] is - not specified and depends on the platform. *) + +(** Successor. [Int32.succ x] is [Int32.add x Int32.one]. *) val succ : int32 -> int32 - (* Successor. [Int32.succ x] is [Int32.add x Int32.one]. *) + +(** Predecessor. [Int32.pred x] is [Int32.sub x Int32.one]. *) val pred : int32 -> int32 - (* Predecessor. [Int32.pred x] is [Int32.sub x Int32.one]. *) + +(** Return the absolute value of its argument. *) val abs : int32 -> int32 - (* Return the absolute value of its argument. *) + +(** The greatest representable 32-bit integer, $2^{31} - 1$. *) val max_int : int32 - (* The greatest representable 32-bit integer, $2^{31} - 1$. *) + +(** The smallest representable 32-bit integer, $-2^{31}$. *) val min_int : int32 - (* The smallest representable 32-bit integer, $-2^{31}$. *) + +(** Bitwise logical and. *) external logand : int32 -> int32 -> int32 = "%int32_and" - (* Bitwise logical and. *) + +(** Bitwise logical or. *) external logor : int32 -> int32 -> int32 = "%int32_or" - (* Bitwise logical or. *) + +(** Bitwise logical exclusive or. *) external logxor : int32 -> int32 -> int32 = "%int32_xor" - (* Bitwise logical exclusive or. *) + +(** Bitwise logical negation *) val lognot : int32 -> int32 - (* Bitwise logical negation *) + +(** [Int32.shift_left x y] shifts [x] to the left by [y] bits. + The result is unspecified if [y < 0] or [y >= 32]. *) external shift_left : int32 -> int -> int32 = "%int32_lsl" - (* [Int32.shift_left x y] shifts [x] to the left by [y] bits. - The result is unspecified if [y < 0] or [y >= 32]. *) + +(** [Int32.shift_right x y] shifts [x] to the right by [y] bits. + This is an arithmetic shift: the sign bit of [x] is replicated + and inserted in the vacated bits. + The result is unspecified if [y < 0] or [y >= 32]. *) external shift_right : int32 -> int -> int32 = "%int32_asr" - (* [Int32.shift_right x y] shifts [x] to the right by [y] bits. - This is an arithmetic shift: the sign bit of [x] is replicated - and inserted in the vacated bits. - The result is unspecified if [y < 0] or [y >= 32]. *) + +(** [Int32.shift_right_logical x y] shifts [x] to the right by [y] bits. + This is a logical shift: zeroes are inserted in the vacated bits + regardless of the sign of [x]. + The result is unspecified if [y < 0] or [y >= 32]. *) external shift_right_logical : int32 -> int -> int32 = "%int32_lsr" - (* [Int32.shift_right_logical x y] shifts [x] to the right by [y] bits. - This is a logical shift: zeroes are inserted in the vacated bits - regardless of the sign of [x]. - The result is unspecified if [y < 0] or [y >= 32]. *) +(** Convert the given integer (type [int]) to a 32-bit integer (type [int32]). *) external of_int : int -> int32 = "%int32_of_int" - (* Convert the given integer (type [int]) to a 32-bit integer - (type [int32]). *) + +(** Convert the given 32-bit integer (type [int32]) to an + integer (type [int]). On 32-bit platforms, the 32-bit integer + is taken modulo $2^{31}$, i.e. the high-order bit is lost + during the conversion. On 64-bit platforms, the conversion + is exact. *) external to_int : int32 -> int = "%int32_to_int" - (* Convert the given 32-bit integer (type [int32]) to an - integer (type [int]). On 32-bit platforms, the 32-bit integer - is taken modulo $2^{31}$, i.e. the high-order bit is lost - during the conversion. On 64-bit platforms, the conversion - is exact. *) +(** Convert the given floating-point number to a 32-bit integer, + discarding the fractional part (truncate towards 0). + The result of the conversion is undefined if, after truncation, + the number is outside the range \[{!Int32.min_int}, {!Int32.max_int}\]. *) external of_float : float -> int32 = "int32_of_float" - (* Convert the given floating-point number to a 32-bit integer, - discarding the fractional part (truncate towards 0). - The result of the conversion is undefined if, after truncation, - the number is outside the range [Int32.min_int, Int32.max_int]. *) + +(** Convert the given 32-bit integer to a floating-point number. *) external to_float : int32 -> float = "int32_to_float" - (* Convert the given 32-bit integer to a floating-point number. *) +(** Convert the given string to a 32-bit integer. + The string is read in decimal (by default) or in hexadecimal, + octal or binary if the string begins with [0x], [0o] or [0b] + respectively. + Raise [Failure "int_of_string"] if the given string is not + a valid representation of an integer. *) external of_string : string -> int32 = "int32_of_string" - (* Convert the given string to a 32-bit integer. - The string is read in decimal (by default) or in hexadecimal, - octal or binary if the string begins with [0x], [0o] or [0b] - respectively. - Raise [Failure "int_of_string"] if the given string is not - a valid representation of an integer. *) + +(** Return the string representation of its argument, in signed decimal. *) val to_string : int32 -> string - (* Return the string representation of its argument, - in signed decimal. *) + +(** [Int32.format fmt n] return the string representation of the + 32-bit integer [n] in the format specified by [fmt]. + [fmt] is a [Printf]-style format containing exactly + one [%d], [%i], [%u], [%x], [%X] or [%o] conversion specification. + See the documentation of the [Printf] module for more information, *) external format : string -> int32 -> string = "int32_format" - (* [Int32.format fmt n] return the string representation of the - 32-bit integer [n] in the format specified by [fmt]. - [fmt] is a [Printf]-style format containing exactly - one [%d], [%i], [%u], [%x], [%X] or [%o] conversion specification. - See the documentation of the [Printf] module for more information, *) + |