copyfromparse.c: use pg_ascii_tolower() rather than tolower().

jeff-davis · jeff-davis · commit 4c787a24e7e2 · 2025-06-10T11:22:57.000-07:00
Avoid dependence on setlocale(). No behavior change. Discussion: https://postgr.es/m/9875f7f9-50f1-4b5d-86fc-ee8b03e8c162@eisentraut.org Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
diff --git a/src/backend/commands/copyfromparse.c b/src/backend/commands/copyfromparse.c
@@ -1538,7 +1538,7 @@ GetDecimalFromHex(char hex)
 	if (isdigit((unsigned char) hex))
 		return hex - '0';
 	else
-		return tolower((unsigned char) hex) - 'a' + 10;
+		return pg_ascii_tolower((unsigned char) hex) - 'a' + 10;
 }
 
 /*

Original file line number	Diff line number	Diff line change
`@@ -1538,7 +1538,7 @@ GetDecimalFromHex(char hex)`
`1538`	`1538`	`if (isdigit((unsigned char) hex))`
`1539`	`1539`	`return hex - '0';`
`1540`	`1540`	`else`
`1541`		`- return tolower((unsigned char) hex) - 'a' + 10;`
	`1541`	`+ return pg_ascii_tolower((unsigned char) hex) - 'a' + 10;`
`1542`	`1542`	`}`
`1543`	`1543`
`1544`	`1544`	`/*`