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/* $NetBSD: t_casinh.c,v 1.2 2016/09/20 17:19:28 christos Exp $ */
/*
* Written by Maya Rashish
* Public domain.
*
* Testing special values of casinh
* Values from ISO/IEC 9899:201x G.6.2.2
*/
#include <atf-c.h>
#include <complex.h>
#include <math.h>
#define RE(z) (((double *)(&z))[0])
#define IM(z) (((double *)(&z))[1])
static const struct {
double input_re;
double input_im;
double result_re;
double result_im;
} values[] = {
{ +0, +0, +0, +0},
{ +5.032E3, +INFINITY, +INFINITY, +M_PI/2},
{ +INFINITY, +5.023E3, +INFINITY, +0},
{ +INFINITY, +INFINITY, +INFINITY, +M_PI/4},
#ifdef __HAVE_NANF
{ +INFINITY, +NAN, +INFINITY, +NAN},
{ +5.032E3, +NAN, +NAN, +NAN}, /* + FE_INVALID optionally raised */
{ +NAN, +0, +NAN, +0},
{ +NAN, -5.023E3, +NAN, +NAN}, /* + FE_INVALID optionally raised */
{ +NAN, +INFINITY, +INFINITY, +NAN}, /* sign of real part of result unspecified */
{ +NAN, +NAN, +NAN, +NAN},
#endif
};
#ifdef __HAVE_NANF
#define both_nan(a,b) (isnan(a) && isnan(b))
#else
#define both_nan(a,b) 0
#endif
#define crude_equality(a,b) ((a == b) || both_nan(a,b))
#define ATF_COMPLEX_EQUAL(a,b) do { \
complex double ci = casinh(a); \
ATF_CHECK_MSG(crude_equality(creal(ci),creal(b)) && \
crude_equality(cimag(ci), cimag(b)), \
"for casinh([%g,%g]) = [%g,%g] != [%g,%g]", \
creal(a), cimag(a), creal(ci), cimag(ci), creal(b), cimag(b)); \
} while (0/*CONSTCOND*/)
ATF_TC(casinh);
ATF_TC_HEAD(casinh, tc)
{
atf_tc_set_md_var(tc, "descr","Check casinh family - special values");
}
ATF_TC_BODY(casinh, tc)
{
complex double input;
complex double result;
unsigned int i;
for (i = 0; i < __arraycount(values); i++) {
RE(input) = values[i].input_re;
IM(input) = values[i].input_im;
RE(result) = values[i].result_re;
IM(result) = values[i].result_im;
ATF_COMPLEX_EQUAL(input, result);
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, casinh);
return atf_no_error();
}
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