Ctype.h – isxdigit()
Ctype.h – isxdigit()
The C++ isxdigit() function determines whether the provided character is hexadecimal or not. In the header file ctype.h, the isxdigit() function is defined.
SYNTAX
Following is the syntax of isxdigit() function:-
char isxdigit( char x);
PARAMETER
It takes any valid character x as an input to the function.
OUTPUT
It return true if the passes character is a hexadecimal digit and false otherwise.
CODE
// use of isxdigit in C++
#include <iostream>
#include <string>
#include <ctype.h>
using namespace std;
int main()
{
string s = "AaBbCxXxYyZz";
int n = s.size();
for(int i=0;i<n;i++)
{
if(isxdigit(s[i]))
cout<<s[i]<< " is a Hexadecimal character"<<endl;
else
cout<<s[i]<<" is NOT a Hexadecimal character"<<endl;
}
return 0;
}
OUTPUT
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