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15 wrz 2023 · fflush () is typically used for output stream only. Its purpose is to clear (or flush) the output buffer and move the buffered data to console (in case of stdout) or disk (in case of file output stream). Below is its syntax.
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Syntax. Following is the C library syntax of the fflush () function −. int fflush (FILE *stream); Parameter. stream: This is a pointer to a FILE object that specifies the stream to be flushed. If stream is NULL, fflush flushes all open output streams. Return Value.
1 mar 2017 · For output streams, fflush () forces a write of all user-space buffered data for the given output or update stream via the stream's underlying write function. For input streams, fflush () discards any buffered data that has been fetched from the underlying file, but has not been consumed by the application.
18 maj 2018 · fflush writes any unwritten data from the stream's buffer to the associated output device. It has different effects on input and output streams, and on different platforms. See the C standard, POSIX and Microsoft extensions.
4 maj 2023 · Learn how to use fflush () function in C to flush the buffer of any stream and print the data to the file or console. See examples, syntax, parameters, return value, exceptions and differences with buffered and unbuffered functions.
In the C Programming Language, the fflush function writes any unwritten data in stream's buffer. If stream is a null pointer, the fflush function will flush all streams with unwritten data in the buffer. Syntax. The syntax for the fflush function in the C Language is: int fflush(FILE *stream); Parameters or Arguments. stream. The stream to flush.
If you want to flush the buffered output at another time, call fflush, which is declared in the header file stdio.h. Function: int fflush (FILE * stream ) ¶ Preliminary: | MT-Safe | AS-Unsafe corrupt | AC-Unsafe lock corrupt | See POSIX Safety Concepts .
