csqrtl
long double complex csqrtl(long double complex);
LDBL_PROTO_NORMAL(csqrtl);
w = clogl(z + csqrtl(z + 1) * csqrtl(z - 1));
z2 = csqrtl(zz);
DEF_STD(csqrtl);
ATF_TC_WITHOUT_HEAD(csqrtl);
ATF_TC_BODY(csqrtl, tc)
t_csqrt = csqrtl;
ATF_TP_ADD_TC(tp, csqrtl);