Format
#include <stdio.h> void clearerr (FILE *stream);
Language Level: ANSI
Threadsafe: Yes.
Description
The clearerr() function resets the error indicator and end-of-file indicator for the specified stream. Once set, the indicators for a specified stream remain set until your program calls the clearerr() function or the rewind() function. The fseek() function also clears the end-of-file indicator. The ILE C/C++ run-time environment does not automatically clear error or end of file indicators.
Return Value
There is no return value.
The value of errno may be set to:
Example that uses clearerr()
This example reads a data stream, and then checks that a read error has not occurred.
#include <stdio.h> #include <stdlib.h> FILE *stream; int c; int main(void) { if ((stream = fopen("mylib/myfile", "r")) != NULL) { if ((c=getc(stream)) == EOF) { if (ferror(stream)) { perror("Read error"); clearerr(stream); } } } else exit(0); }
Related Information
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