iswspace - Online Linux Manual PageSection : 3
Updated : 2023-02-05
Source : Linux man-pages 6.03

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NAMEiswspace − test for whitespace wide character

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LIBRARYStandard C library (libc, −lc)

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SYNOPSIS#include <wctype.h>int iswspace(wint_t wc);

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DESCRIPTIONThe iswspace() function is the wide-character equivalent of the isspace(3) function. It tests whether wc is a wide character belonging to the wide-character class "space". The wide-character class "space" is disjoint from the wide-character class "graph" and therefore also disjoint from its subclasses "alnum", "alpha", "upper", "lower", "digit", "xdigit", "punct". The wide-character class "space" contains the wide-character class "blank". The wide-character class "space" always contains at least the space character and the control characters '\f', '\n', '\r', '\t', '\v'.

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RETURN VALUEThe iswspace() function returns nonzero if wc is a wide character belonging to the wide-character class "space". Otherwise, it returns zero.

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ATTRIBUTESFor an explanation of the terms used in this section, see attributes(7). InterfaceAttributeValue iswspace() Thread safetyMT-Safe locale

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STANDARDSPOSIX.1-2001, POSIX.1-2008, C99.

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NOTESThe behavior of iswspace() depends on the LC_CTYPE category of the current locale.

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SEE ALSOisspace(3), iswctype(3) 0

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