使用指针复制整数字符串的C程序

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void copyIntegerString(const char* source, char* destination) {
    int length = strlen(source);
    int i;

    for (i = 0; i < length; i++) {
        *(destination + i) = *(source + i);
    }

    *(destination + i) = '\0';
}

int main() {
    const char* source = "12345";
    char* destination = (char*)malloc(strlen(source) + 1);

    copyIntegerString(source, destination);

    printf("Copied string: %s\n", destination);

    free(destination);

    return 0;
}