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# define TGSOURCE "complex/ccosh.c"
#include "_tgmath.h"
#include <complex.h>
#include <math.h>
#include <fenv.h>
TYPE complex TGFN(ccosh)(TYPE complex z)
{
int classr = fpclassify(TGFN(creal)(z));
int classi = fpclassify(TGFN(cimag)(z));
//int signr = signbit(TGFN(creal)(z));
//int signi = signbit(TGFN(cimag)(z));
if (classr == FP_ZERO && classi == FP_ZERO) {
return TGCMPLX(1.0, 0.0);
}
if (classr == FP_ZERO && classi == FP_INFINITE) {
feraiseexcept(FE_INVALID);
return TGCMPLX(NAN, 0.0);
}
if (classr == FP_ZERO && classi == FP_NAN) {
return TGCMPLX(NAN, 0.0);
}
if (classr != FP_INFINITE && classr != FP_ZERO && classi == FP_INFINITE) {
feraiseexcept(FE_INVALID);
return TGCMPLX(NAN, NAN);
}
if (classr != FP_INFINITE && classr != FP_ZERO && classi == FP_NAN) {
feraiseexcept(FE_INVALID);
return TGCMPLX(NAN, NAN);
}
if (classr == FP_INFINITE && classi == FP_ZERO) {
return TGCMPLX(INFINITY, 0.0);
}
if (classr == FP_INFINITE && classi != FP_INFINITE && classi != FP_ZERO) {
TYPE y = TGFN(cimag)(z);
return TGCMPLX(TGFN(cos)(y), TGFN(sin)(y));
}
if (classr == FP_INFINITE && classi == FP_INFINITE) {
feraiseexcept(FE_INVALID);
return TGCMPLX(INFINITY, NAN);
}
if (classr == FP_INFINITE && classi == FP_NAN) {
return TGCMPLX(INFINITY, NAN);
}
if (classr == FP_NAN && classi == FP_ZERO) {
return TGCMPLX(NAN, 0.0);
}
if (classr == FP_NAN && classi != FP_INFINITE && classi != FP_ZERO) {
feraiseexcept(FE_INVALID);
return TGCMPLX(NAN, NAN);
}
if (classr == FP_NAN && classi == FP_NAN) {
return TGCMPLX(NAN, NAN);
}
return z;
}
/*d
The ccosh functions compute the complex hyperbolic cosine of z.
d*/
/*r
The ccosh functions return the complex hyperbolic cosine value.
r*/
/*
STDC(199901)
LINK(m)
*/
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