diff options
Diffstat (limited to 'src/emu/validity.c')
-rw-r--r-- | src/emu/validity.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/emu/validity.c b/src/emu/validity.c index f790755a30f..83517646af8 100644 --- a/src/emu/validity.c +++ b/src/emu/validity.c @@ -176,7 +176,7 @@ INLINE int validate_tag(const game_driver *driver, const char *object, const cha for (p = tag; *p != 0; p++) { - if (*p != tolower(*p)) + if (*p != tolower((UINT8)*p)) { mame_printf_error("%s: %s has %s with tag '%s' containing upper-case characters\n", driver->source_file, driver->name, object, tag); error = TRUE; @@ -532,7 +532,7 @@ static int validate_driver(int drivnum, const machine_config *config) /* make sure the year is only digits, '?' or '+' */ for (s = driver->year; *s; s++) - if (!isdigit(*s) && *s != '?' && *s != '+') + if (!isdigit((UINT8)*s) && *s != '?' && *s != '+') { mame_printf_error("%s: %s has an invalid year '%s'\n", driver->source_file, driver->name, driver->year); error = TRUE; @@ -702,7 +702,7 @@ static int validate_roms(int drivnum, const machine_config *config, region_info /* make sure it's all lowercase */ for (s = last_name; *s; s++) - if (tolower(*s) != *s) + if (tolower((UINT8)*s) != *s) { mame_printf_error("%s: %s has upper case ROM name %s\n", driver->source_file, driver->name, last_name); error = TRUE; |