modf

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Macro constants
 
Defined in header <math.h>
float       modff( float x, float* iptr );
(since C99)
double      modf( double x, double* iptr );
long double modfl( long double x, long double* iptr );
(since C99)

Decomposes given floating point value x into integral and fractional parts, each having the same type and sign as x. The integral part (in floating-point format) is stored in the object pointed to by iptr.

Contents

[edit] Parameters

arg - floating point value
iptr - pointer to floating point value to store the integral part to

[edit] Return value

The fractional part of x with the same sign as x. The integral part is put into the value pointed to by iptr.

[edit] Example

[edit] See also

(C99)
nearest integer not greater in magnitude than the given value
(function)