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[svn r5] Initial commit. Most things are very rough.

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Tomas Lindquist Olsen
2007-09-01 21:43:27 +02:00
parent 1c23dd2cdc
commit 34699bbb07
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/**
*
D constrains integral types to specific sizes. But efficiency
of different sizes varies from machine to machine,
pointer sizes vary, and the maximum integer size varies.
<b>stdint</b> offers a portable way of trading off size
vs efficiency, in a manner compatible with the <tt>stdint.h</tt>
definitions in C.
The exact aliases are types of exactly the specified number of bits.
The at least aliases are at least the specified number of bits
large, and can be larger.
The fast aliases are the fastest integral type supported by the
processor that is at least as wide as the specified number of bits.
The aliases are:
<table border=1 cellspacing=0 cellpadding=5>
<th>Exact Alias
<th>Description
<th>At Least Alias
<th>Description
<th>Fast Alias
<th>Description
<tr>
<td>int8_t
<td>exactly 8 bits signed
<td>int_least8_t
<td>at least 8 bits signed
<td>int_fast8_t
<td>fast 8 bits signed
<tr>
<td>uint8_t
<td>exactly 8 bits unsigned
<td>uint_least8_t
<td>at least 8 bits unsigned
<td>uint_fast8_t
<td>fast 8 bits unsigned
<tr>
<td>int16_t
<td>exactly 16 bits signed
<td>int_least16_t
<td>at least 16 bits signed
<td>int_fast16_t
<td>fast 16 bits signed
<tr>
<td>uint16_t
<td>exactly 16 bits unsigned
<td>uint_least16_t
<td>at least 16 bits unsigned
<td>uint_fast16_t
<td>fast 16 bits unsigned
<tr>
<td>int32_t
<td>exactly 32 bits signed
<td>int_least32_t
<td>at least 32 bits signed
<td>int_fast32_t
<td>fast 32 bits signed
<tr>
<td>uint32_t
<td>exactly 32 bits unsigned
<td>uint_least32_t
<td>at least 32 bits unsigned
<td>uint_fast32_t
<td>fast 32 bits unsigned
<tr>
<td>int64_t
<td>exactly 64 bits signed
<td>int_least64_t
<td>at least 64 bits signed
<td>int_fast64_t
<td>fast 64 bits signed
<tr>
<td>uint64_t
<td>exactly 64 bits unsigned
<td>uint_least64_t
<td>at least 64 bits unsigned
<td>uint_fast64_t
<td>fast 64 bits unsigned
</table>
The ptr aliases are integral types guaranteed to be large enough
to hold a pointer without losing bits:
<table border=1 cellspacing=0 cellpadding=5>
<th>Alias
<th>Description
<tr>
<td>intptr_t
<td>signed integral type large enough to hold a pointer
<tr>
<td>uintptr_t
<td>unsigned integral type large enough to hold a pointer
</table>
The max aliases are the largest integral types:
<table border=1 cellspacing=0 cellpadding=5>
<th>Alias
<th>Description
<tr>
<td>intmax_t
<td>the largest signed integral type
<tr>
<td>uintmax_t
<td>the largest unsigned integral type
</table>
* Authors: Walter Bright, www.digitalmars.com
* License: Public Domain
* Macros:
* WIKI=Phobos/StdStdint
*/
/*
NOTE: This file has been patched from the original DMD distribution to
work with the LLVMDC compiler.
Modified by Tomas Lindquist Olsen, August 2007
*/
module std.stdint;
/* Exact sizes */
alias byte int8_t;
alias ubyte uint8_t;
alias short int16_t;
alias ushort uint16_t;
alias int int32_t;
alias uint uint32_t;
alias long int64_t;
alias ulong uint64_t;
/* At least sizes */
alias byte int_least8_t;
alias ubyte uint_least8_t;
alias short int_least16_t;
alias ushort uint_least16_t;
alias int int_least32_t;
alias uint uint_least32_t;
alias long int_least64_t;
alias ulong uint_least64_t;
/* Fastest minimum width sizes */
alias byte int_fast8_t;
alias ubyte uint_fast8_t;
alias int int_fast16_t;
alias uint uint_fast16_t;
alias int int_fast32_t;
alias uint uint_fast32_t;
alias long int_fast64_t;
alias ulong uint_fast64_t;
/* Integer pointer holders */
version(LLVM64) {
alias long intptr_t;
alias ulong uintptr_t;
}
else {
alias int intptr_t;
alias uint uintptr_t;
}
/* Greatest width integer types */
alias long intmax_t;
alias ulong uintmax_t;