930217-1.c

来自「this is a gcc file, you can download it 」· C语言 代码 · 共 15 行

double g ();
typedef union {
  struct {
    unsigned s:1, e:8, f:23;
  } u;
  float f;
} s;

f(x, n)
     float x;
{
  ((s *)&x)->u.e -= n;
  x = g((double)x, -n);
}