made typeLetter global string constant (#6943)

badasahog · web-flow · commit 5a955df8020d · 2025-05-04T20:11:43.000Z
diff --git a/src/fread.c b/src/fread.c
@@ -214,7 +214,7 @@ static const char* strlim(const char *ch, size_t limit) {
   return ptr;
 }
 
-static char *typeLetter = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
+static const char *typeLetter = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 
 static char *typesAsString(int ncol) {
   int nLetters = strlen(typeLetter);

Original file line number	Diff line number	Diff line change
`@@ -214,7 +214,7 @@ static const char* strlim(const char *ch, size_t limit) {`
`214`	`214`	`return ptr;`
`215`	`215`	`}`
`216`	`216`
`217`		`-static char *typeLetter = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";`
	`217`	`+static const char *typeLetter = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";`
`218`	`218`
`219`	`219`	`static char *typesAsString(int ncol) {`
`220`	`220`	`int nLetters = strlen(typeLetter);`