CCode: Use constant `Key` in `readConfig`
@@ -84,7 +84,7 @@ void setDefaultConfig (CCodeData * const mapping)
*/
void readConfig (CCodeData * const mapping, KeySet * const config, Key const * const root)
{
- Key * cur = 0;
+ Key const * cur = 0;
while ((cur = ksNext (config)) != 0)
{
/* Ignore keys that are not directly below the config root key or have an incorrect size */
