memcmp
Compare byte string
Description
The memcmp function compares byte string b1 against byte string b2. Both strings are assumed to be len bytes long.Example:
Example - Compare byte string
Workings
#include <stdio.h> #include <string.h> int main() { // define two identical arrays char u[5] = {1, 2, 3, 4, 5}, v[5] = {1, 2, 3, 4, 5}; if (!memcmp(u, v, 5*sizeof(char))) printf("The two arrays store the same elements.\n"); else printf("The two arrays store different elements.\n"); return 0; }
Solution
Output:
The two arrays store the same elements.
Return Values
The memcmp function returns zero if the two strings are identical, otherwise returns the difference between the first two differing bytes (treated as unsigned char values, so that '\200' is greater than '\0,' for example). Zero-length strings are always identical.Last Modified: 18 Dec 11 @ 14:54 Page Rendered: 2022-03-14 17:29:55