fclose
- Updated2023-02-21
- 1 minute(s) read
fclose
int fclose (FILE *stream);
Purpose
Flushes the specified I/O stream and closes the associated file. If there is any unwritten buffered data for the file, it is written out before the file is closed. Any unread buffered data is discarded. If the associated buffer was automatically allocated, it is deallocated.
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Note Because this function may flush the write buffer, it can return an error even when the file handle is valid. To avoid this possibility, call fflush before calling fclose. |
Parameters
| Input | ||
| Name | Type | Description |
| stream | FILE * | Contains a pointer to the I/O stream that will be closed. |
Return Value
| Name | Type | Description |
| status | int | Contains the status returned by the function. If the function succeeds, fclose returns 0. If an error occurs, fclose returns EOF and sets errno to a nonzero value. |
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later
Example
Refer to userint\custctrl\cviogl\ogldemo.cws for an example of using the fclose function.