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

8 votes261 views3 answers
C++ min
C++
0 vote243 views1 answer
Check if a variable is tring c++
C++
0 vote274 views1 answer
Compile in c++
C++
0 vote282 views2 answers
Iostream c++
C++
0 vote275 views1 answer
Pop off end of string c++
C++
1 vote245 views1 answer
Save all output in log file c cpp
C++
0 vote252 views1 answer
Pros millis()
C++
23 votes262 views3 answers
Flutter datetime format
C++
1 vote245 views1 answer
Enumerate with letters latex
C++
72 votes296 views4 answers
C++ vector pop first element
C++