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Use C11 char16_t and char32_t for Unicode code points.

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Reviewed-by: Tatsuo Ishii <ishii@postgresql.org>
Reviewed-by: Thomas Munro <thomas.munro@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Discussion: https://postgr.es/m/bedcc93d06203dfd89815b10f815ca2de8626e85.camel%40j-davis.com
This commit is contained in:
Jeff Davis
2025-10-29 14:17:13 -07:00
parent 16edc1b94f
commit 3853a6956c
29 changed files with 284 additions and 244 deletions
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10
src/fe_utils/mbprint.c
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@@ -49,20 +49,20 @@ pg_get_utf8_id(void)
*
* No error checks here, c must point to a long-enough string.
*/
static pg_wchar
static char32_t
utf8_to_unicode(const unsigned char *c)
{
if ((*c & 0x80) == 0)
return (pg_wchar) c[0];
return (char32_t) c[0];
else if ((*c & 0xe0) == 0xc0)
return (pg_wchar) (((c[0] & 0x1f) << 6) |
return (char32_t) (((c[0] & 0x1f) << 6) |
(c[1] & 0x3f));
else if ((*c & 0xf0) == 0xe0)
return (pg_wchar) (((c[0] & 0x0f) << 12) |
return (char32_t) (((c[0] & 0x0f) << 12) |
((c[1] & 0x3f) << 6) |
(c[2] & 0x3f));
else if ((*c & 0xf8) == 0xf0)
return (pg_wchar) (((c[0] & 0x07) << 18) |
return (char32_t) (((c[0] & 0x07) << 18) |
((c[1] & 0x3f) << 12) |
((c[2] & 0x3f) << 6) |
(c[3] & 0x3f));