Mikroelektronika MIKROE-738 Datenbogen

mikroC PRO for PIC32

MikroElektronika

625

strncmp

int strncmp(char *s1, char *s2, char len);

Description Function lexicographically compares not more than 

len

 characters (characters that follow the null 

character are not compared) from the string pointed by 

s1

 to the string pointed by

 s2

. The function 

returns a value indicating the 

s1

 and 

s2

 relationship:

Value     Meaning

< 0       s1 “less than” s2

= 0       s1 “equal to” s2

> 0       s1 “greater than” s2

char txt = “mikroElektronika”;

char txt_sub = “mikro”;

int res;

res = strncmp(txt_sub,txt,3);  // compares the first 3 characters from the 

string ‘txt’ with the sting ‘txt_sub’ and returns a difference

strstr

char *strstr(char *s1, char *s2);

Description Function locates the first occurrence of the string 

s2

 in the string 

s1

 (excluding the terminating null 

character).

The function returns pointer to first occurrence of 

s2

 in 

s1

; if no string was found, function returns 0. 

If 

s2

 is a null string, the function returns

 0

.

char txt = “mikroElektronika”;

char txt_sub = “mikro”;

char *res;

res = strstr(txt_sub,txt); 

strcspn

char *strcspn(char * s1, char *s2);

Description Function  computes  the  length  of  the  maximum  initial  segment  of  the  string  pointed  to  by 

s1

  that 

consists entirely of characters that are not in the string pointed to by

 s2

.

The function returns the length of the initial segment.

char txt = “mikroElektronika”;

char txt_sub = “mikro”;

char *res;

res = strcspn(txt_sub,txt);