isprint-iswprint-isprint-l-iswprint-l.md

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Learn more about: isprint, iswprint, _isprint_l, _iswprint_l	isprint, iswprint, _isprint_l, _iswprint_l	4/2/2020	iswprint isprint _isprint_l _iswprint_l _o_isprint _o_iswprint	msvcrt.dll msvcr80.dll msvcr90.dll msvcr100.dll msvcr100_clr0400.dll msvcr110.dll msvcr110_clr0400.dll msvcr120.dll msvcr120_clr0400.dll ucrtbase.dll api-ms-win-crt-string-l1-1-0.dll ntoskrnl.exe	DLLExport	apiref	iswprint _istprint isprint	_istprint function iswprint function _iswprint_l function isprint_l function istprint function isprint function iswprint_l function _isprint_l function	a8bbcdb0-e8d0-4d8c-ae4e-56d3bdee6ca3

isprint, iswprint, _isprint_l, _iswprint_l

Determines whether an integer represents a printable character.

Syntax

int isprint(
   int c
);
int iswprint(
   wint_t c
);
int _isprint_l(
   int c,
   _locale_t locale
);
int _iswprint_l(
   wint_t c,
   _locale_t locale
);

Parameters

c
Integer to test.

locale
The locale to use.

Return value

Each of these routines returns nonzero if c is a particular representation of a printable character. isprint returns a nonzero value if c is a printable character (0x20 - 0x7E), including the space character. iswprint returns a nonzero value if c is a printable wide character, including the space wide character. Each of these routines returns 0 if c doesn't satisfy the test condition.

The result of the test condition for these functions depends on the LC_CTYPE category setting of the locale. For more information, see setlocale, _wsetlocale. The versions of these functions that don't have the _l suffix use the current locale for any locale-dependent behavior; the versions that do have the _l suffix are identical except that they use the locale that's passed in instead. For more information, see Locale.

The behavior of isprint and _isprint_l is undefined if c isn't EOF or in the range 0 through 0xFF, inclusive. When a debug CRT library is used and c isn't one of these values, the functions raise an assertion.

Generic-text routine mappings

TCHAR.H routine	_UNICODE and _MBCS not defined	_MBCS defined	_UNICODE defined
_istprint	isprint	_ismbcprint	iswprint

Remarks

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Requirements

Routine	Required header
isprint	<ctype.h>
iswprint	<ctype.h> or <wchar.h>
_isprint_l	<ctype.h>
_iswprint_l	<ctype.h> or <wchar.h>

For more compatibility information, see Compatibility.

See also

Character classification
Locale
is, isw routines