Using functions isxdigit : char functions « Data Types

Using functions isxdigit : char functions « Data Types « C++ Tutorial

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C++ Tutorial » Data Types » char functions

2.22.4.Using functions isxdigit

#include <iostream>

using std::cout;

using std::endl;



#include <cctype>

using std::isalnum;

using std::isalpha;

using std::isdigit;

using std::isxdigit;



int main()

{

   cout << "\nAccording to isxdigit:\n"

      << ( isxdigit( 'F' ) ? "F is a" : "F is not a" )

      << " hexadecimal digit\n"

      << ( isxdigit( 'J' ) ? "J is a" : "J is not a" )

      << " hexadecimal digit\n"

      << ( isxdigit( '7' ) ? "7 is a" : "7 is not a" )

      << " hexadecimal digit\n"

      << ( isxdigit( '$' ) ? "$ is a" : "$ is not a" )

      << " hexadecimal digit\n"

      << ( isxdigit( 'f' ) ? "f is a" : "f is not a" )

      << " hexadecimal digit" << endl;





   return 0;

}

According to isxdigit:
F is a hexadecimal digit
J is not a hexadecimal digit
7 is a hexadecimal digit
$ is not a hexadecimal digit
f is a hexadecimal digit

2.22.char functions
	2.22.1.	Using functions isdigit
	2.22.2.	Using functions isalpha
	2.22.3.	Using functions isalnum
	2.22.4.	Using functions isxdigit
	2.22.5.	islower
	2.22.6.	isupper
	2.22.7.	toupper and tolower
	2.22.8.	isspace
	2.22.9.	iscntrl
	2.22.10.	ispunct
	2.22.11.	isprint
	2.22.12.	isgraph
	2.22.13.	Using strrchr: index a character in a string

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