/C++/Know what the input data is whether integer or not

Know what the input data is whether integer or not

#include <iostream>

using std::cout;
using std::cin;
using std::endl
using std::string;

bool isNumber(const string& str)
{
    for (char const &c : str) {
        if (std::isdigit(c) == 0) return false;
    }
    return true;
}

int main(){
    string str1 = "231524randstr23";
    string str2 = "23152423";
    string str3 = "a3152423";

    isNumber(str1) ? cout << "Number\n" : cout << "Not number\n";
    isNumber(str2) ? cout << "Number\n" : cout << "Not number\n";
    isNumber(str3) ? cout << "Number\n" : cout << "Not number\n";

    return EXIT_SUCCESS;
}

Source: delftstack.com

Similar codes

0 vote295 views1 answer
Minimumm sort tryed
C++
0 vote273 views1 answer
Sinh to hop c++
C++
0 vote339 views1 answer
Day 21 generics hackerrank solution in c++
C++
0 vote268 views1 answer
C++ print number not in scientific notation
C++
2 votes253 views2 answers
C++ typedef array
C++
0 vote275 views1 answer
What does sultion mean in a particle model
C++
0 vote308 views1 answer
10^18 data type in c++
C++
1 vote283 views1 answer
Swap using Function template in c++
C++
1 vote279 views1 answer
Cpp map iterate over keys
C++
4 votes259 views3 answers
C++ hide show console
C++