rewind
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Header File
stdio.h
Category
Input/output Routines
Prototype
void rewind(FILE *stream);
Description
Repositions a file pointer to the beginning of a stream.
rewind(stream) is equivalent to fseek(stream, 0L, SEEK_SET), except that rewind clears the end-of-file and error indicators, while fseek clears the end-of-file indicator only.
After rewind, the next operation on an update file can be either input or output.
Return Value
None.
Example
#include <stdio.h> #include <dir.h> int main(void) { FILE *fp; char *fname = "TXXXXXX", *newname, first; newname = mktemp(fname); fp = fopen(newname,"w+"); fprintf(fp,"abcdefghijklmnopqrstuvwxyz"); rewind(fp); fscanf(fp,"%c",&first); printf("The first character is: %c\n",first); fclose(fp); remove(newname); return 0; }
Portability
POSIX | Win32 | ANSI C | ANSI C++ |
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