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-rw-r--r--sysdeps/libm-ieee754/s_csinh.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/sysdeps/libm-ieee754/s_csinh.c b/sysdeps/libm-ieee754/s_csinh.c
index 98f06a5..29a271f 100644
--- a/sysdeps/libm-ieee754/s_csinh.c
+++ b/sysdeps/libm-ieee754/s_csinh.c
@@ -19,6 +19,7 @@
Boston, MA 02111-1307, USA. */
#include <complex.h>
+#include <fenv.h>
#include <math.h>
#include "math_private.h"
@@ -41,12 +42,13 @@ __csinh (__complex__ double x)
{
/* Imaginary part is finite. */
double sinh_val = __ieee754_sinh (__real__ x);
+ double cosh_val = __ieee754_cosh (__real__ x);
double sinix, cosix;
__sincos (__imag__ x, &sinix, &cosix);
__real__ retval = sinh_val * cosix;
- __imag__ retval = sinh_val * sinix;
+ __imag__ retval = cosh_val * sinix;
if (negate)
__real__ retval = -__real__ retval;
@@ -58,11 +60,20 @@ __csinh (__complex__ double x)
/* Real part is 0.0. */
__real__ retval = __copysign (0.0, negate ? -1.0 : 1.0);
__imag__ retval = __nan ("") + __nan ("");
+
+#ifdef FE_INVALID
+ if (icls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
}
else
{
__real__ retval = __nan ("");
__imag__ retval = __nan ("");
+
+#ifdef FE_INVALID
+ feraiseexcept (FE_INVALID);
+#endif
}
}
}
@@ -93,6 +104,11 @@ __csinh (__complex__ double x)
/* The addition raises the invalid exception. */
__real__ retval = HUGE_VAL;
__imag__ retval = __nan ("") + __nan ("");
+
+#ifdef FE_INVALID
+ if (icls == FP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
}
}
else