fmodf man page on SunOS

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fmod(3M)		Mathematical Library Functions		      fmod(3M)

NAME
       fmod, fmodf, fmodl - floating-point remainder value function

SYNOPSIS
       c99 [ flag... ] file... -lm [ library... ]
       #include <math.h>

       double fmod(double x, double y);

       float fmodf(float x, float y);

       long double fmodl(long double x, long double y);

DESCRIPTION
       These  functions return the floating-point remainder of the division of
       x by y.

RETURN VALUES
       These functions return the value x − i * y, for	some  integer  i  such
       that, if y is non-zero, the result has the same sign as x and magnitude
       less than the magnitude of y.

       If x or y is NaN, a NaN is returned.

       If y is 0, a domain error occurs and a NaN is returned.

       If x is infinite, a domain error occurs and a NaN is returned.

       If x is ±0 and y is not 0, ±0 is returned.

       If x is not infinite and y is ±Inf, x is returned.

ERRORS
       These functions will fail if:

       Domain Error    The x argument is infinite or y is 0.

		       If   the	  integer   expression	 (math_errhandling   &
		       MATH_ERREXCEPT) is non-zero, the invalid floating-point
		       exception is raised.

USAGE
       An application wanting to check for exceptions should  call  feclearex‐
       cept(FE_ALL_EXCEPT)  before  calling  these  functions.	On  return, if
       fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is
       non-zero,  an  exception	 has been raised. An application should either
       examine the return value or check the floating point exception flags to
       detect exceptions.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Interface Stability	     │Standard			   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │MT-Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       feclearexcept(3M),    fetestexcept(3M),	  isnan(3M),	math.h(3HEAD),
       attributes(5), standards(5)

SunOS 5.10			  12 Jul 2006			      fmod(3M)
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