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Make try_fgetc() prepend clearerr() for fgetc() versions that need it.
[plomrogue]
/
src
/
common
/
readwrite.h
diff --git
a/src/common/readwrite.h
b/src/common/readwrite.h
index 4aebdbc9b1d1fc3e94cad5b9898d51399da6b310..b61230fb59487ba05f0feed3a05de66bb0ab0dcb 100644
(file)
--- a/
src/common/readwrite.h
+++ b/
src/common/readwrite.h
@@
-22,7
+22,9
@@
extern void try_fputc(uint8_t c, FILE * file, char * f);
/* Wrapper to calling fgetc() and fgets() from function "f". The return code is
* returned unless ferror() indicates an error (i.e. to signify an end of file,
/* Wrapper to calling fgetc() and fgets() from function "f". The return code is
* returned unless ferror() indicates an error (i.e. to signify an end of file,
- * fgetc() may return an EOF and fgets() a NULL).
+ * fgetc() may return an EOF and fgets() a NULL). try_fgetc() calls clearerr()
+ * on "file" before fgetc(), because some Unixes fgetc() remember old EOFs and
+ * only return those until explicitely cleared.
*/
extern int try_fgetc(FILE * file, char * f);
extern char * try_fgets(char * line, int size, FILE * file, char * f);
*/
extern int try_fgetc(FILE * file, char * f);
extern char * try_fgets(char * line, int size, FILE * file, char * f);