#include <stdio.h>
#include <stdbool.h>
#include <string.h>
/*
equal:
Checks whether two integer ranges are equal.
C uses memcpy/memcmp for raw memory comparison because:
- memcmp is optimized in all standard C libraries
- It compares bytes efficiently
- It avoids manual loops unless needed
Parameters:
a, b - pointers to the two arrays
n - number of elements to compare
Returns:
true if arrays contain identical elements in identical order
false otherwise
*/
bool equal(const int *a, const int *b, size_t n) {
/* memcmp compares raw bytes; multiply by sizeof(int) */
return memcmp(a, b, n * sizeof(int)) == 0;
}
int main(void) {
int x[] = {1, 2, 3, 4, 5};
int y[] = {1, 2, 3, 4, 5};
int z[] = {1, 2, 3, 9, 5};
size_t n = sizeof(x) / sizeof(x[0]);
/* Compare x and y */
bool xy_equal = equal(x, y, n);
printf("x and y equal? %s\n", xy_equal ? "true" : "false");
/* Compare x and z */
bool xz_equal = equal(x, z, n);
printf("x and z equal? %s\n", xz_equal ? "true" : "false");
return 0;
}
/*
run:
x and y equal? true
x and z equal? false
*/
