strct-varg-1.c
来自「gcc3.2.1源代码」· C语言 代码 · 共 57 行
C
57 行
#ifdef NO_VARARGS#include <stdarg.h>#define va_alist int x_attr, ...#define va_dcl#else#include <varargs.h>#endifstruct s { int x, y; };f (va_alist) va_dcl{ struct s va_values; va_list va; int attr; int i;#ifdef NO_VARARGS va_start (va, x_attr); attr = x_attr;#else va_start (va); attr = va_arg (va, int);#endif if (attr != 2) abort (); va_values = va_arg (va, struct s); if (va_values.x != 0xaaaa || va_values.y != 0x5555) abort (); attr = va_arg (va, int); if (attr != 3) abort (); va_values = va_arg (va, struct s); if (va_values.x != 0xffff || va_values.y != 0x1111) abort (); va_end (va);}main (){ struct s a, b; a.x = 0xaaaa; a.y = 0x5555; b.x = 0xffff; b.y = 0x1111; f (2, a, 3, b); exit (0);}
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