Changeset 28a5ebd in mainline for uspace/lib/usbdev/src/request.c

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functions has been replaced by our custom putuchar(char32_t) functions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:

• uspace/lib/usbdev/src/request.c (modified) (2 diffs)

uspace/lib/usbdev/src/request.c

@@ -756 +756 @@
         /* Prepare dynamically allocated variables. */
         uint8_t *string = NULL;
-        wchar_t *string_chars = NULL;
+        char32_t *string_chars = NULL;
 
         /* Get the actual descriptor. */
@@ -783 +783 @@
 
         const size_t string_char_count = string_size / 2;
-        string_chars = malloc(sizeof(wchar_t) * (string_char_count + 1));
+        string_chars = malloc(sizeof(char32_t) * (string_char_count + 1));
         if (string_chars == NULL) {
                 rc = ENOMEM;