ldc/lphobos/std/stdarg.d
2007-10-28 19:33:50 +01:00

19 lines
426 B
D

/*
* Placed in public domain.
* Written by Hauke Duden and Walter Bright
*/
/* This is for use with variable argument lists with extern(D) linkage. */
module std.stdarg;
alias void* va_list;
T va_arg(T)(inout va_list vp)
{
static assert((T.sizeof & (T.sizeof -1)) == 0);
va_list vptmp = cast(va_list)((cast(size_t)vp + T.sizeof - 1) & ~(T.sizeof - 1));
vp = vptmp + T.sizeof;
return *cast(T*)vptmp;
}