Learning C
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C - strncmp function
Synopsis:
#include <stdio.h>
int strncmp(char *string1, char *string2, int n);
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Description:
The strncmp function compares first n characters of string1 and string2 and returns a value indicating their relationship.
Return Value
if Return value if < 0 then it indicates string1 is less than string2 if Return value if > 0 then it indicates string2 is less than string1 if Return value if = 0 then it indicates string1 is equal to string2
Example
#include <stdio.h>
int main() {
char string1[20];
char string2[20];
strcpy(string1, "Hello");
strcpy(string2, "Hellooo");
printf("Return Value is : %d\n", strncmp( string1, string2, 4));
strcpy(string1, "Helloooo");
strcpy(string2, "Hellooo");
printf("Return Value is : %d\n", strncmp( string1, string2, 10));
strcpy(string1, "Hellooo");
strcpy(string2, "Hellooo");
printf("Return Value is : %d\n", strncmp( string1, string2, 20));
return 0;
}
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It will proiduce following result:
Return Value is : 0
Return Value is : 111
Return Value is : 0
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