Question

How to check if all strings in a vector starts with uppercase in C++

Answer 1

#include <iostream> 
#include <vector>
#include <algorithm>
  
using namespace std; 
    
int main() 
{ 
    vector<string> v = {"Aaa", "Bbb", "Ccc", "Ddd", "Eee", "Fff"};
  
    bool b = all_of(v.begin(), v.end(), [](const string & s) {
                            return s.size() > 0 && ::isupper(s[0]);
                      });
    cout << b;
      
    return 0; 
} 
  
  
  
  
/*
run:
  
1
  
*/

 

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