#define _DEFAULT_SOURCE 1 #define _BSD_SOURCE 1 #include #include #include "mtest.h" static struct f_f t[] = { #include "sanity/y0f.h" #include "special/y0f.h" }; int main(void) { #pragma STDC FENV_ACCESS ON float y; float d; int e, i, bad, err = 0; struct f_f *p; for (i = 0; i < sizeof t/sizeof *t; i++) { p = t + i; if (p->r < 0) continue; fesetround(p->r); feclearexcept(FE_ALL_EXCEPT); y = y0f(p->x); e = fetestexcept(INEXACT|INVALID|DIVBYZERO|UNDERFLOW|OVERFLOW); #ifndef __aarch64__ if (!checkexcept(e, p->e, p->r)) { printf("%s:%d: bad fp exception: %s y0f(%a)=%a, want %s", p->file, p->line, rstr(p->r), p->x, p->y, estr(p->e)); printf(" got %s\n", estr(e)); err++; } #endif d = ulperrf(y, p->y, p->dy); bad = p->x < 0 && !isnan(y) && y != -inf; if (bad || (!(p->x < 0) && !checkulp(d, p->r))) { if (!bad && fabsf(d) < 0x1p23f) printf("X "); else err++; printf("%s:%d: %s y0f(%a) want %a got %a ulperr %.3f = %a + %a\n", p->file, p->line, rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy); } } return !!err; }