Changeset 28a5ebd in mainline for kernel/generic/include/printf/printf_core.h

Timestamp:

2020-06-18T15:39:50Z (4 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ce52c333

Parents:

4f663f3e

Message:

Use char32_t instead of wchat_t to represent UTF-32 strings

The intention of the native HelenOS string API has been always to
support Unicode in the UTF-8 and UTF-32 encodings as the sole character
representations and ignore the obsolete mess of older single-byte and
multibyte character encodings. Before C11, the wchar_t type has been
slightly misused for the purpose of the UTF-32 strings. The newer
char32_t type is obviously a much more suitable option. The standard
defines char32_t as uint_least32_t, thus we can take the liberty to fix
it to uint32_t.

To maintain compatilibity with the C Standard, the putwchar(wchar_t)
functions has been replaced by our custom putuchar(char32_t) functions
where appropriate.

File:

• kernel/generic/include/printf/printf_core.h (modified) (2 diffs)

kernel/generic/include/printf/printf_core.h

@@ -38 +38 @@
 #include <stdarg.h>
 #include <stddef.h>
+#include <uchar.h>
 
 /** Structure for specifying output methods for different printf clones. */
@@ -45 +46 @@
 
         /* Wide string output function, returns number of printed characters or EOF */
-        int (*wstr_write)(const wchar_t *, size_t, void *);
+        int (*wstr_write)(const char32_t *, size_t, void *);
 
         /* User data - output stream specification, state, locks, etc. */