20020709-1.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 8 行

extern double atof (__const char *__nptr) __attribute__ ((__pure__));

void bar (char *s)
{
  union {double val; unsigned int a, b;} u;
  u.val = atof (s);
}