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author | Jörg Frings-Fürst <debian@jff.email> | 2018-03-07 05:31:03 +0100 |
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committer | Jörg Frings-Fürst <debian@jff.email> | 2018-03-07 05:31:03 +0100 |
commit | f7c3580478601e3a77dc864e5a1d91c1edad5187 (patch) | |
tree | 26f2b85233e76ce30cbd013559944404e66a6552 /doc/unitypes.texi | |
parent | 44a3eaeba04ef78835ca741592c376428ada5f71 (diff) |
New upstream version 0.9.9upstream/0.9.9
Diffstat (limited to 'doc/unitypes.texi')
-rw-r--r-- | doc/unitypes.texi | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/unitypes.texi b/doc/unitypes.texi index 696ba88..68ab92f 100644 --- a/doc/unitypes.texi +++ b/doc/unitypes.texi @@ -13,3 +13,15 @@ taken from @code{<stdint.h>}, on platforms where this include file is present. @deftp Type ucs4_t This type represents a single Unicode character, outside of an UTF-32 string. @end deftp + +The types @code{ucs4_t} and @code{uint32_t} happen to be identical. They differ +in use and intent, however: +@itemize @bullet +@item +Use @code{uint32_t *} to designate an UTF-32 string. Use @code{ucs4_t} to +designate a single Unicode character, outside of an UTF-32 string. +@item +Conversions functions that take an UTF-32 string as input will usually perform +a range-check on the @code{uint32_t} values. Whereas functions that are +declared to take @code{ucs4_t} arguments will not perform such a range-check. +@end itemize |