1ISWSPACE(3) Linux Programmer's Manual ISWSPACE(3)
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6 iswspace - test for whitespace wide character
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9 #include <wctype.h>
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11 int iswspace(wint_t wc);
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14 The iswspace() function is the wide-character equivalent of the iss‐
15 pace() function. It tests whether wc is a wide character belonging to
16 the wide character class "space".
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18 The wide character class "space" is disjoint from the wide character
19 class "graph" and therefore also disjoint from its subclasses "alnum",
20 "alpha", "upper", "lower", "digit", "xdigit", "punct".
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22 The wide character class "space" contains the wide character class
23 "blank".
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25 The wide character class "space" always contains at least the space
26 character and the control characters '\f', '\n', '\r', '\t', '\v'.
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29 The iswspace() function returns non-zero if wc is a wide character
30 belonging to the wide character class "space". Otherwise it returns
31 zero.
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34 C99.
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37 isspace(3), iswctype(3)
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40 The behaviour of iswspace() depends on the LC_CTYPE category of the
41 current locale.
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45GNU 1999-07-25 ISWSPACE(3)