C++ isalphanum

string test = "Ab4 :";
std::isalnum(test[0]);	//true
std::isalnum(test[1]);	//true
std::isalnum(test[2]);	//true
std::isalnum(test[3]);	//false
std::isalnum(test[4]);	//false

Similar codes

4 votes118 views1 answer
Cpp iterator of element
C++
6 votes117 views1 answer
Convert string to stream c++
C++
0 vote147 views1 answer
Electricity billing system project in c++
C++
-1 vote152 views1 answer
Intersection between vector c++
C++
0 vote164 views1 answer
Unary overload operator cpp
C++
9 votes117 views3 answers
How to iterate in string in c++
C++
3 votes154 views3 answers
Get first element of set c++
C++
0 vote136 views1 answer
Cin does not wait for input
C++
4 votes132 views1 answer
Shuffle vector c++
C++
0 vote126 views1 answer
123213
C++