Zilog ZUSBOPTS - Manual (Page 445)

UM017105-0511 Standard Functions
Zilog Developer Studio II – ZNEO™
User Manual
417
Synopsis
#include

double fmod(double x, double y);

float fmodf(float x, float y);
Returns
The value of x if y is zero. Otherwise, it returns the value f, which has the same sign as x,
such that x - i * y + f for some integer i, where the magnitude of f is less than the magni-
tude of y.
Example
double y=7.23;

double x=2.31;

double z;

z=fmod(y,x);
free
Causes the space pointed to by ptr to be deallocated; that is, made available for further
allocation. If ptr is a null pointer, no action occurs. Otherwise, if the argument does not
match a pointer earlier returned by the
calloc , malloc , or realloc function, or if the
space has been deallocated by a call to free or realloc , the behavior is undefined. If
freed space is referenced, the behavior is undefined.
Synopsis
#include

void free(void *ptr);
Example
char *buf;

buf=(char*) calloc(40, sizeof(char));

free(buf);
frexp, frexpf
Breaks a floating-point number into a normalized fraction and an integral power of 2. It
stores the integer in the
int object pointed to by exp .