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Inline pg_ascii_tolower() and pg_ascii_toupper().

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Discussion: https://postgr.es/m/450ceb6260cad30d7afdf155d991a9caafee7c0d.camel@j-davis.com
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
This commit is contained in:
Jeff Davis
2025-11-26 10:04:32 -08:00
parent 2dd506b859
commit ec4997a9d7
2 changed files with 23 additions and 28 deletions
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25
src/include/port.h
View File

@@ -169,8 +169,29 @@ extern int pg_strcasecmp(const char *s1, const char *s2);
extern int pg_strncasecmp(const char *s1, const char *s2, size_t n);
extern unsigned char pg_toupper(unsigned char ch);
extern unsigned char pg_tolower(unsigned char ch);
extern unsigned char pg_ascii_toupper(unsigned char ch);
extern unsigned char pg_ascii_tolower(unsigned char ch);
/*
* Fold a character to upper case, following C/POSIX locale rules.
*/
static inline unsigned char
pg_ascii_toupper(unsigned char ch)
{
if (ch >= 'a' && ch <= 'z')
ch += 'A' - 'a';
return ch;
}
/*
* Fold a character to lower case, following C/POSIX locale rules.
*/
static inline unsigned char
pg_ascii_tolower(unsigned char ch)
{
if (ch >= 'A' && ch <= 'Z')
ch += 'a' - 'A';
return ch;
}
/*
* Beginning in v12, we always replace snprintf() and friends with our own

26
src/port/pgstrcasecmp.c
View File

@@ -13,10 +13,6 @@
*
* NB: this code should match downcase_truncate_identifier() in scansup.c.
*
* We also provide strict ASCII-only case conversion functions, which can
* be used to implement C/POSIX case folding semantics no matter what the
* C library thinks the locale is.
*
*
* Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
*
@@ -127,25 +123,3 @@ pg_tolower(unsigned char ch)
ch = tolower(ch);
return ch;
}
/*
* Fold a character to upper case, following C/POSIX locale rules.
*/
unsigned char
pg_ascii_toupper(unsigned char ch)
{
if (ch >= 'a' && ch <= 'z')
ch += 'A' - 'a';
return ch;
}
/*
* Fold a character to lower case, following C/POSIX locale rules.
*/
unsigned char
pg_ascii_tolower(unsigned char ch)
{
if (ch >= 'A' && ch <= 'Z')
ch += 'a' - 'A';
return ch;
}