* be '+' or '-'; a '+' or '-' without digits following is invalid)
* '8': check for "line" describing an integer smaller than or equal UINT8_MAX
*/
-extern void err_try_fgets(char * line, uint32_t linemax, FILE * file,
- char * context, char * test);
+extern char * err_try_fgets(char * line, uint32_t linemax, FILE * file,
+ char * context, char * test);