Zilog Z8F0130 - Manual (Page 463)

UM013037-1212 floor
Zilog Developer Studio II – Z8 Encore!
User Manual
439
floor
Computes the largest integer not greater than x.
Synopsis
#include

double floor(double x);
Returns
The largest integer not greater than x, expressed as a double .
Example
double y=6.23;

double x;

x=floor(y);
fmod
Computes the floating-point remainder of x / y . If the quotient of x / y cannot be represented,
the behavior is undefined.
Synopsis
#include

double fmod(double x, double 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