iswgraph - cppreference.com (original) (raw)

| | | | | --------------------------- | | ----------- | | int iswgraph( wint_t ch ); | | (since C95) |

Checks if the given wide character has a graphical representation, i.e. it is either a number (0123456789), an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ), a lowercase letter (abcdefghijklmnopqrstuvwxyz), a punctuation character (!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~) or any graphical character specific to the current C locale.

[edit] Parameters

[edit] Return value

Non-zero value if the wide character has a graphical representation character, zero otherwise.

[edit] Notes

ISO 30112 specifies which Unicode characters are include in POSIX graph category.

[edit] Example

#include <locale.h> #include <stdio.h> #include <wchar.h> #include <wctype.h>   int main(void) { wchar_t c = L'\u2602'; // the Unicode character Umbrella ('☂') printf("in the default locale, iswgraph(%#x) = %d\n", c, !!iswgraph(c)); setlocale(LC_ALL, "en_US.utf8"); printf("in Unicode locale, iswgraph(%#x) = %d\n", c, !!iswgraph(c)); }

Output:

in the default locale, iswgraph(0x2602) = 0 in Unicode locale, iswgraph(0x2602) = 1

[edit] References

• C23 standard (ISO/IEC 9899:2024):

• 7.30.2.1.6 The iswgraph function (p: TBD)

• C17 standard (ISO/IEC 9899:2018):

• 7.30.2.1.6 The iswgraph function (p: TBD)

• C11 standard (ISO/IEC 9899:2011):

• 7.30.2.1.6 The iswgraph function (p: 449-450)

• C99 standard (ISO/IEC 9899:1999):

• 7.25.2.1.6 The iswgraph function (p: 395-396)

[edit] See also