view lphobos/std/stdarg.d @ 1131:f2f13f111e2e

Workaround for LLVM PR 3861 (http://llvm.org/PR3861). (LLVM abort()s in codegen if the second integer in a return value is <= i8 on x86/x86-64) This was breaking native compilation of Tango's TempFile module on x86-64.
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 23 Mar 2009 01:01:55 +0100
parents eef8ac26c66c
children
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/*
 * Placed in public domain.
 * Written by Hauke Duden and Walter Bright
 */

/* This is for use with variable argument lists with extern(D) linkage. */

/* Modified for LDC (LLVM D Compiler) by Tomas Lindquist Olsen, 2007 */

module std.stdarg;

alias void* va_list;

T va_arg(T)(ref va_list vp)
{
    size_t size = T.sizeof > size_t.sizeof ? size_t.sizeof : T.sizeof;
    va_list vptmp = cast(va_list)((cast(size_t)vp + size - 1) &  ~(size - 1));
    vp = vptmp + T.sizeof;
    return *cast(T*)vptmp;
}