Check if whole string is uppercase

#include <iostream>
#include <string>
#include <algorithm>

int main() {
    std::string s = "HELLo";
    if (std::all_of(s.begin(), s.end(), [](unsigned char c){ return std::isupper(c); })) {
        std::cout << "Is uppercase." << '\n';
    } else {
        std::cout << "Is not uppercase." << '\n';
    }
}

Source: stackoverflow.com

Similar codes

0 vote253 views1 answer
Checking if a string has only letters cpp
C++
1 vote266 views1 answer
Std::queue
C++
0 vote257 views2 answers
C++ bit shift wrap
C++
9 votes221 views4 answers
C++ sqrt
C++
0 vote288 views1 answer
Int and char in c++ compiler
C++
0 vote261 views1 answer
Access part of string in c++
C++
1 vote283 views3 answers
Print 2d vector c++
C++
0 vote276 views3 answers
Hwo to send token on redirection in passport
C++
0 vote264 views1 answer
C++ drop last element of list
C++
0 vote291 views1 answer
Generate random string in c++
C++