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| author | Mattias Andrée <m@maandree.se> | 2026-10-23 21:09:14 +0200 |
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| committer | Mattias Andrée <m@maandree.se> | 2026-10-23 21:09:14 +0200 |
| commit | 9d247dc831569a4db75ec9466d1a988a82dfba29 (patch) | |
| tree | baf2b21897788f630cb2001beb4f9e5bed9940a7 /libutf8_is_noncharacter.3 | |
| download | libutf8-d684338398db432d647da1fa2f732b3d7134266b.tar.gz libutf8-d684338398db432d647da1fa2f732b3d7134266b.tar.bz2 libutf8-d684338398db432d647da1fa2f732b3d7134266b.tar.xz | |
Signed-off-by: Mattias Andrée <m@maandree.se>
Diffstat (limited to 'libutf8_is_noncharacter.3')
| -rw-r--r-- | libutf8_is_noncharacter.3 | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/libutf8_is_noncharacter.3 b/libutf8_is_noncharacter.3 new file mode 100644 index 0000000..b9a657d --- /dev/null +++ b/libutf8_is_noncharacter.3 @@ -0,0 +1,53 @@ +.TH LIBUTF8_IS_NONCHARACTER 3 LIBUTF8 +.SH NAME +libutf8_is_noncharacter - Test whether a codepoint is a Unicode non-character codepoint + +.SH SYNOPSIS +.nf +#include <libutf8.h> + +int \fBlibutf8_is_noncharacter\fP(uint_least32_t \fIcodepoint\fP); +.fi +.PP +Link with +.IR -lutf8 . + +.SH DESCRIPTION +The +.BR libutf8_is_noncharacter () +function tests whether a codepoint is a Unicode non-character +codepoint, that is, codepoint that is reserved as invalid and +has no special meaning. +.PP +The result is unspecified for codepoints above +.BR LIBUTF8_ULTIMATE_CODEPOINT (3) +which conform to the pattern of non-character codepoints. + +.SH RETURN VALUE +The +.BR libutf8_is_noncharacter () +function returns 1 if the predicate is true, and 0 otherwise. + +.SH ERRORS +The +.BR libutf8_is_noncharacter () +function cannot fail. + +.SH ATTRIBUTES +For an explanation of the terms used in this section, see +.BR attributes (7). +.PP +.TS +allbox; +lb lb lb lb +l l l l. +Interface Thread safety Async-signal safety Async-cancel safety +T{ +.BR libutf8_is_noncharacter () +T} MT-Safe AS-Safe AC-Safe +.TE +.sp + +.SH SEE ALSO +.BR libutf8 (7), +.BR libutf8_is_invalid (3) |