Zilog Z8F0130 - Manual (Page 492)

Appendix B. C Standard Library UM013037-1212
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int res;

res=strncmp(s1,s2,3);
strncpy
Copies not more than n characters from the string pointed to by s2 to the array pointed to
by s1. If copying takes place between objects that overlap, the behavior is undefined.
If the string pointed to by s2 is shorter than n characters, null characters are appended to
the copy in the array pointed to by s1, until n characters in all have been written.
Synopsis
#include

char *strncpy(char *s1, char *s2, size_t n);
Returns
The value of s1.
Example
char *ptr;

char s1[40]="Production";

char s2[]="Languages";

ptr=strncpy(s1,s2,4);
strpbrk
Locates the first occurrence in the string pointed to by s1 of any character from the string
pointed to by s2.
Synopsis
#include

char *strpbrk(char *s1, char *s2);
Returns
A pointer to the character, or a null pointer if no character from s2 occurs in s1.
Example
char *ptr;

char s1[]="COMPASS";

char s2[]="PASS";

ptr=strpbrk(s1,s2);