1#include <stdint.h> 2#include <stdio.h> 3#include "mtest.h" 4 5static struct f_f t[] = { 6#include "sanity/log2f.h" 7#include "special/log2f.h" 8 9}; 10 11int main(void) 12{ 13 #pragma STDC FENV_ACCESS ON 14 float y; 15 float d; 16 int e, i, err = 0; 17 struct f_f *p; 18 19 for (i = 0; i < sizeof t/sizeof *t; i++) { 20 p = t + i; 21 22 if (p->r < 0) 23 continue; 24 fesetround(p->r); 25 feclearexcept(FE_ALL_EXCEPT); 26 y = log2f(p->x); 27 e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW); 28 29 if (!checkexcept(e, p->e, p->r)) { 30 printf("%s:%d: bad fp exception: %s log2f(%a)=%a, want %s", 31 p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e)); 32 printf(" got %s\n", estr(e)); 33 err++; 34 } 35 d = ulperrf(y, p->y, p->dy); 36 if (!checkulp(d, p->r)) { 37 printf("%s:%d: %s log2f(%a) want %a got %a ulperr %.3f = %a + %a\n", 38 p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy); 39 err++; 40 } 41 } 42 return !!err; 43} 44