#include <math.h>

double sinh(double x);

float sinhf(float x);

long double sinhl(long double x);


Partially implemented


IEEE Std 1003.1-2017


These functions shall compute the hyperbolic sine of their argument x. An application wishing to check for error situations should set errno to zero and call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if errno is non-zero or fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an error has occurred.

Return value

Upon successful completion, these functions shall return the hyperbolic sine of x. If the result would cause an overflow, a range error shall occur and ±HUGE_VAL, ±HUGE_VALF, and ±HUGE_VALL (with the same sign as x) shall be returned as appropriate for the type of the function. If x is NaN, a NaN shall be returned. If x is ±0 or ±Inf, x shall be returned. If x is subnormal, a range error may occur and x should be returned. If x is not returned, sinh(), sinhf(), and sinhl() shall return an implementation-defined value no greater in magnitude than DBL_MIN, FLT_MIN, and LDBL_MIN, respectively.


These functions shall fail if:

  • Range Error - The result would cause an overflow.

If the integer expression (math_errhandling & MATH_ERRNO) is non-zero, then errno shall be set to ERANG. If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, then the overflow floating-point exception shall be raised.



Known bugs


See Also

  1. Standard library functions
  2. Table of Contents