Question

How to count spaces in a string with C++

Answer 1

#include <iostream>
 
int countSpaces(std::string s) {
    int spaces = 0;
    
    for (int i = 0; s[i]; i++) {
        if (std::isspace(s[i])) {
            spaces++;
        }
    }
    
    return spaces;
}
   
int main(void) {
    std::string s = "C++   is a general-purpose programming language";
           
    std::cout << countSpaces(s);
    
    return 0;
}
   
   
   
   
/*
run:
     
7
     
*/

 

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