1Stdlib.Int32(3) OCaml library Stdlib.Int32(3)
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6 Stdlib.Int32 - no description
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9 Module Stdlib.Int32
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12 Module Int32
13 : (module Stdlib__int32)
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22 val zero : int32
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24 The 32-bit integer 0.
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28 val one : int32
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30 The 32-bit integer 1.
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34 val minus_one : int32
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36 The 32-bit integer -1.
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40 val neg : int32 -> int32
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42 Unary negation.
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46 val add : int32 -> int32 -> int32
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48 Addition.
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52 val sub : int32 -> int32 -> int32
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54 Subtraction.
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58 val mul : int32 -> int32 -> int32
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60 Multiplication.
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64 val div : int32 -> int32 -> int32
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66 Integer division. This division rounds the real quotient of its argu‐
67 ments towards zero, as specified for (/) .
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70 Raises Division_by_zero if the second argument is zero.
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74 val unsigned_div : int32 -> int32 -> int32
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76 Same as Int32.div , except that arguments and result are interpreted as
77 unsigned 32-bit integers.
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80 Since 4.08.0
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84 val rem : int32 -> int32 -> int32
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86 Integer remainder. If y is not zero, the result of Int32.rem x y sat‐
87 isfies the following property: x = Int32.add (Int32.mul (Int32.div x y)
88 y) (Int32.rem x y) . If y = 0 , Int32.rem x y raises Division_by_zero
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93 val unsigned_rem : int32 -> int32 -> int32
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95 Same as Int32.rem , except that arguments and result are interpreted as
96 unsigned 32-bit integers.
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99 Since 4.08.0
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103 val succ : int32 -> int32
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105 Successor. Int32.succ x is Int32.add x Int32.one .
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109 val pred : int32 -> int32
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111 Predecessor. Int32.pred x is Int32.sub x Int32.one .
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115 val abs : int32 -> int32
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117 Return the absolute value of its argument.
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121 val max_int : int32
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123 The greatest representable 32-bit integer, 2^31 - 1.
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127 val min_int : int32
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129 The smallest representable 32-bit integer, -2^31.
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133 val logand : int32 -> int32 -> int32
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135 Bitwise logical and.
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139 val logor : int32 -> int32 -> int32
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141 Bitwise logical or.
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145 val logxor : int32 -> int32 -> int32
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147 Bitwise logical exclusive or.
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151 val lognot : int32 -> int32
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153 Bitwise logical negation.
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157 val shift_left : int32 -> int -> int32
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160 Int32.shift_left x y shifts x to the left by y bits. The result is un‐
161 specified if y < 0 or y >= 32 .
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165 val shift_right : int32 -> int -> int32
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168 Int32.shift_right x y shifts x to the right by y bits. This is an
169 arithmetic shift: the sign bit of x is replicated and inserted in the
170 vacated bits. The result is unspecified if y < 0 or y >= 32 .
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174 val shift_right_logical : int32 -> int -> int32
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177 Int32.shift_right_logical x y shifts x to the right by y bits. This is
178 a logical shift: zeroes are inserted in the vacated bits regardless of
179 the sign of x . The result is unspecified if y < 0 or y >= 32 .
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183 val of_int : int -> int32
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185 Convert the given integer (type int ) to a 32-bit integer (type int32
186 ). On 64-bit platforms, the argument is taken modulo 2^32.
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190 val to_int : int32 -> int
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192 Convert the given 32-bit integer (type int32 ) to an integer (type int
193 ). On 32-bit platforms, the 32-bit integer is taken modulo 2^31, i.e.
194 the high-order bit is lost during the conversion. On 64-bit platforms,
195 the conversion is exact.
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199 val unsigned_to_int : int32 -> int option
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201 Same as Int32.to_int , but interprets the argument as an unsigned inte‐
202 ger. Returns None if the unsigned value of the argument cannot fit
203 into an int .
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206 Since 4.08.0
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210 val of_float : float -> int32
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212 Convert the given floating-point number to a 32-bit integer, discarding
213 the fractional part (truncate towards 0). The result of the conversion
214 is undefined if, after truncation, the number is outside the range [
215 Int32.min_int , Int32.max_int ].
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219 val to_float : int32 -> float
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221 Convert the given 32-bit integer to a floating-point number.
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225 val of_string : string -> int32
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227 Convert the given string to a 32-bit integer. The string is read in
228 decimal (by default, or if the string begins with 0u ) or in hexadeci‐
229 mal, octal or binary if the string begins with 0x , 0o or 0b respec‐
230 tively.
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232 The 0u prefix reads the input as an unsigned integer in the range [0,
233 2*Int32.max_int+1] . If the input exceeds Int32.max_int it is con‐
234 verted to the signed integer Int32.min_int + input - Int32.max_int - 1
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237 The _ (underscore) character can appear anywhere in the string and is
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241 Raises Failure if the given string is not a valid representation of an
242 integer, or if the integer represented exceeds the range of integers
243 representable in type int32 .
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247 val of_string_opt : string -> int32 option
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249 Same as of_string , but return None instead of raising.
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252 Since 4.05
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256 val to_string : int32 -> string
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258 Return the string representation of its argument, in signed decimal.
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262 val bits_of_float : float -> int32
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264 Return the internal representation of the given float according to the
265 IEEE 754 floating-point 'single format' bit layout. Bit 31 of the re‐
266 sult represents the sign of the float; bits 30 to 23 represent the (bi‐
267 ased) exponent; bits 22 to 0 represent the mantissa.
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271 val float_of_bits : int32 -> float
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273 Return the floating-point number whose internal representation, accord‐
274 ing to the IEEE 754 floating-point 'single format' bit layout, is the
275 given int32 .
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278 type t = int32
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281 An alias for the type of 32-bit integers.
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285 val compare : t -> t -> int
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287 The comparison function for 32-bit integers, with the same specifica‐
288 tion as compare . Along with the type t , this function compare allows
289 the module Int32 to be passed as argument to the functors Set.Make and
290 Map.Make .
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294 val unsigned_compare : t -> t -> int
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296 Same as Int32.compare , except that arguments are interpreted as un‐
297 signed 32-bit integers.
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300 Since 4.08.0
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304 val equal : t -> t -> bool
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306 The equal function for int32s.
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309 Since 4.03.0
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315OCamldoc 2021-01-26 Stdlib.Int32(3)