Search results
Aug 12, 2020 · What I want to mention why rewind(stdin) make your code works is that rewind(stdin) moves input buffer position and, for some streams, it truncates its internal buffer. That's why your code works correctly with rewind(stdin) since it empties remaining characters in the buffer.
If stdin is a seekable file, then rewind(stdin) ought to work just fine. If you need to rewind on a non-seekable file, then you either need to buffer all the data (either in memory or in a temporary file) or abort.
Jun 12, 2015 · Defined in header <stdio.h>. void rewind(FILE*stream ); Moves the file position indicator to the beginning of the given file stream. The function is equivalent to fseek(stream, 0, SEEK_SET);, except that end-of-file and error indicators are cleared. The function drops any effects from previous calls to ungetc .
Dec 1, 2022 · The rewind function repositions the file pointer associated with stream to the beginning of the file. A call to rewind is similar to (void) fseek(stream, 0L, SEEK_SET ); However, unlike fseek, rewind clears both the error indicators for the stream and the end-of-file indicator.
Dec 14, 2013 · I mean, to deal with the problem up the newline lurking in stdin while using multiple scanf() statments, it seems like I can use fseek(stdin,0,SEEK_SET) or rewind(stdin) inplace of the non-portable and UB fflush(stdin).
Nov 30, 2022 · Defined in header <cstdio>. void rewind(std::FILE* stream ); Moves the file position indicator to the beginning of the given file stream. The function is equivalent to std::fseek(stream, 0, SEEK_SET);, except that end-of-file and error indicators are cleared.
Apr 16, 2020 · rewind is a function in the C programming language that is specified in the stdio.h library header file. The function moves the file position indicator to the beginning of the specified stream, while also clearing the error and EOF flags associated with that stream.
