Zilog Z8F0130 - Manual (Page 460)

Appendix B. C Standard Library UM013037-1212
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Returns
A pointer to the start (lowest byte address) of the allocated space. If the space cannot be
allocated, or if nmemb or
size is zero, the calloc function returns a null pointer.
Example
char *buf;

buf = (char*)calloc(40, sizeof(char));

if (buf != NULL)

/*success*/

else

/*fail*/
ceil
Computes the smallest integer not less than x.
Synopsis
#include

double ceil(double x);
Returns
The smallest integer not less than x, expressed as a double .
Example
double y=1.45;

double x;

x=ceil(y);
cos
Computes the cosine of x (measured in radians). A large magnitude argument can yield a
result with little or no significance.
Synopsis
#include

double cos(double x);
Returns
The cosine value.