c++ check if string is integer
using namespace std;
bool isNumber(const string& s)
{
string::const_iterator it = s.begin();
while (it != s.end() && isdigit(*it)) ++it;
return !s.empty() && it == s.end();
}c++ check if string is integer
using namespace std;
bool isNumber(const string& s)
{
string::const_iterator it = s.begin();
while (it != s.end() && isdigit(*it)) ++it;
return !s.empty() && it == s.end();
}Copyright © 2021 Codeinu
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