From 132781a2fbf1454c631b4cd116725f075895a7cb Mon Sep 17 00:00:00 2001 From: Jeff Davis Date: Mon, 6 Jul 2026 12:02:54 -0700 Subject: [PATCH v1 4/4] pg_locale_libc.c: add missing casts to unsigned char. Discussion: https://postgr.es/m/20260630012919.78@rfd.leadboat.com Backpatch-through: 19 --- src/backend/utils/adt/pg_locale_libc.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/backend/utils/adt/pg_locale_libc.c b/src/backend/utils/adt/pg_locale_libc.c index 0043371586d..b50b3f24efd 100644 --- a/src/backend/utils/adt/pg_locale_libc.c +++ b/src/backend/utils/adt/pg_locale_libc.c @@ -527,7 +527,7 @@ strlower_libc_sb(char *dest, size_t destsize, const char *src, size_t srclen, { if (*p >= 'A' && *p <= 'Z') *p += 'a' - 'A'; - else if (IS_HIGHBIT_SET(*p) && isupper_l(*p, loc)) + else if (IS_HIGHBIT_SET(*p) && isupper_l((unsigned char) *p, loc)) *p = tolower_l((unsigned char) *p, loc); } else @@ -611,14 +611,14 @@ strtitle_libc_sb(char *dest, size_t destsize, const char *src, size_t srclen, { if (*p >= 'A' && *p <= 'Z') *p += 'a' - 'A'; - else if (IS_HIGHBIT_SET(*p) && isupper_l(*p, loc)) + else if (IS_HIGHBIT_SET(*p) && isupper_l((unsigned char) *p, loc)) *p = tolower_l((unsigned char) *p, loc); } else { if (*p >= 'a' && *p <= 'z') *p -= 'a' - 'A'; - else if (IS_HIGHBIT_SET(*p) && islower_l(*p, loc)) + else if (IS_HIGHBIT_SET(*p) && islower_l((unsigned char) *p, loc)) *p = toupper_l((unsigned char) *p, loc); } } @@ -713,7 +713,7 @@ strupper_libc_sb(char *dest, size_t destsize, const char *src, size_t srclen, { if (*p >= 'a' && *p <= 'z') *p -= 'a' - 'A'; - else if (IS_HIGHBIT_SET(*p) && islower_l(*p, loc)) + else if (IS_HIGHBIT_SET(*p) && islower_l((unsigned char) *p, loc)) *p = toupper_l((unsigned char) *p, loc); } else -- 2.43.0