Blame src/math/erfl.c

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#include <stdint.h>
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#include <stdio.h>
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#include "util.h"
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static struct l_l t[] = {
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#if LDBL_MANT_DIG == 53
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#include "sanity/erf.h"
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#elif LDBL_MANT_DIG == 64
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#include "sanity/erfl.h"
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#endif
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};
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int main(void)
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{
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	long double y;
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	float d;
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	int e, i, err = 0;
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	struct l_l *p;
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	for (i = 0; i < sizeof t/sizeof *t; i++) {
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		p = t + i;
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		setupfenv(p->r);
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		y = erfl(p->x);
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		e = getexcept();
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		if (!checkexcept(e, p->e, p->r)) {
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			printf("%s erfl(%La)==%La except: want %s", rstr(p->r), p->x, p->y, estr(p->e));
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			printf(" got %s\n", estr(e));
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			err++;
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		}
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		d = ulperrl(y, p->y, p->dy);
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		if (!checkulp(d, p->r)) {
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			printf("%s erfl(%La) want %La got %La ulperr %.3f = %a + %a\n",
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				rstr(p->r), p->x, p->y, y, d, d-p->dy, p->dy);
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			err++;
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		}
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	}
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	return !!err;
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}