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C ctype isprint() Function

❮ C ctype Library


Example

Check if a character is printable:

char c = 'A';
if (isprint(c)) {
  printf("%c is printable", c);
} else {
  printf("%c is not printable", c);
}
Try it Yourself »

Definition and Usage

The isprint() function returns a non-zero value (equivalent to boolean true) if a character is printable. A printable character is any character with a graphical representation as well as the space character.

The isprint() function is defined in the <ctype.h> header file.


Syntax

int isprint(int c);

Parameter Values

Parameter Description
c Required. The ASCII value of a character or an actual character

Technical Details

Returns: An int value which is non-zero (equivalent to boolean true) if the character is a printable character.

Otherwise it returns 0 (equivalent to boolean false).

❮ C ctype Library

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