C ++Isprint() in C

The functionisprint()is a predefined function that checks if the passed character is printable. It returns a non-zero value, otherwise it returns zero. This function is declared in the "cctype" header file.

Thisisprint()C ++Language syntax,

int isprint(int character);

Here,

Character-is the character to be checked.

Thisisprint()C ++Language example,

Example

#include <iostream>
#include <cctype>
using namespace std;
int main() {
　　　int val1　=　28;
　　　int val2　= 's';
　　　int val3　= '\n';
　　　if(isprint(val1))
　　　cout << "value is printable" << endl;
　　　else
　　　cout << "value is not printable" << endl;
　　　if(isprint(val2))
　　　cout << "value is printable" << endl;
　　　else
　　　cout << "value is not printable" << endl;
　　　if(isprint(val3))
　　　cout << "value is printable" << endl;
　　　else
　　　cout << "value is not printable" << endl;
　　　return 0;
}

Output Result

value is not printable
value is printable
value is not printable

In the above program, three variables are declared as val1, val2and val3. Check whether each variable is printable.

if(isprint(val1))
cout << "value is printable" << endl;
else
cout << "value is not printable" << endl;
if(isprint(val2))
cout << "value is printable" << endl;
else
cout << "value is not printable" << endl;
if(isprint(val3))
cout << "value is printable" << endl;
else
cout << "value is not printable" << endl;