如何在char数组中查找空格

#include <iostream>

int findSpace(char arr[], int size) {
    for (int i = 0; i < size; i++) {
        if (arr[i] == ' ') {
            return i;
        }
    }
    return -1;
}

int main() {
    char str[] = "Hello World";
    int index = findSpace(str, sizeof(str) / sizeof(char));
    if (index != -1) {
        std::cout << "Space found at index: " << index << std::endl;
    } else {
        std::cout << "Space not found." << std::endl;
    }
    return 0;
}