erf
double erf(double);
#define erf(x) __tg_simple(x, erf)
PROTO_NORMAL(erf);
DEF_STD(erf);
LDBL_MAYBE_CLONE(erf);
{"erf", erf, &NAN, &NAN, 0},
{"erf", erf, &ZERO, &ZERO, 0},
{"erf", erf, &MZERO, &MZERO, 0},
{"erf", erf, &INF, &ONE, 0},
{"erf", erf, &MINF, &MONE, 0},
double erf (double);
#define F erf