HUGE_VALF
#define INFINITY HUGE_VALF
assert(fpclassify(HUGE_VALF) == FP_INFINITE);
assert(fpclassify((double)HUGE_VALF) == FP_INFINITE);
assert(fpclassify((long double)HUGE_VALF) == FP_INFINITE);
float rf, bigf = HUGE_VALF;
assert(lgammaf(-HUGE_VALF) == HUGE_VALF && signgam == 1);
assert(lgammaf(HUGE_VALF) == HUGE_VALF && signgam == 1);
assert(lgammaf(-0.0F) == HUGE_VALF && signgam == -1);
assert(lgammaf(0.0F) == HUGE_VALF && signgam == 1);
if (d == -HUGE_VAL || d == -HUGE_VALF || d == -HUGE_VALL)
if (d == HUGE_VAL || d == HUGE_VALF || d == HUGE_VALL)