truncf(3) [osx man page]

TRUNC(3)						   BSD Library Functions Manual 						  TRUNC(3)

NAME

     trunc -- truncate to integer value

SYNOPSIS

     #include <math.h>

     double
     trunc(double x);

     long double
     truncl(long double x);

     float
     truncf(float x);

DESCRIPTION

     The trunc() functions return the integral value nearest to but no larger in magnitude than x.

SPECIAL VALUES

     trunc(+-0) returns +-0.

     trunc(+-infinity) returns +-infinity.

VECTOR OPERATIONS

     If you need to apply the trunc() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
     give significantly better performance:

     #include <Accelerate/Accelerate.h>

     vFloat vintf(vFloat x);
     void vvintf(float *y, const float *x, const int *n);
     void vvint(double *y, const double *x, const int *n);

SEE ALSO

     ceil(3), floor(3), round(3), math(3)

STANDARDS

     The trunc() functions conform to ISO/IEC 9899:2011.

BSD
								 December 11, 2006							       BSD

FMOD(3) 						   BSD Library Functions Manual 						   FMOD(3)

NAME

     fmod -- floating-point remainder function

SYNOPSIS

     #include <math.h>

     double
     fmod(double x, double y);

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

     float
     fmodf(float x, float y);

DESCRIPTION

     The fmod() functions compute the floating-point remainder of x/ y.

     Specifically, the 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.

SPECIAL VALUES

     fmod(+-0, y) returns +-0 if y is neither 0 nor NaN.

     fmod(x, y) returns a NaN and raises the "invalid" floating-point exception for x infinite or y zero.

     fmod(x, +-infinity) returns x for x not infinite.

VECTOR OPERATIONS

     If you need to apply the fmod() functions to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
     give significantly better performance:

     #include <Accelerate/Accelerate.h>

     vFloat vfmodf(vFloat x, vFloat y);
     void vvfmodf(float *z, const float *y, const float *x, const int *n);
     void vvfmod(double *z, const double *y, const double *x, const int *n);

SEE ALSO

     math(3)

STANDARDS

     The fmod() functions conform to ISO/IEC 9899:2011.

BSD
								 December 11, 2006							       BSD