Zilog EZ80F916 - Manual (Page 384)

UM014423-0607 C Standard Library
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364
srand
Uses the argument as a seed for a new sequence of pseudorandom numbers to be returned
by subsequent calls to
rand . If srand is then called with the same seed value, the
sequence of pseudorandom numbers is repeated. If rand is called before any calls to
srand have been made, the same sequence is generated as when srand is first called with
a seed value of 1.
Synopsis
#include
void srand(unsigned int seed);
Example
int i;
srand(1001);
i=rand();
sscanf
Reads formatted data from a string.
Synopsis
#include
int sscanf(char *s, char *format, ...);
Returns
The value of the macro EOF if an input failure occurs before any conversion. Otherwise,
the
sscanf function returns the number of input items assigned, which can be fewer than
provided for, or even zero, in the event of an early conflict between an input character and
the format.
Example
char buf [80];
int i;
sscanf(buf,"%d",&i);
strcat
Appends a copy of the string pointed to by s2 (including the terminating null character) to
the end of the string pointed to by s1. The initial character of s2 overwrites the null charac-
ter at the end of s1.