Why do we have to use fclose() ?

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Why I cant see the file content once it is written to a file before the file is closed i.e. before calling fclose() I tried to view the file content using breakpoints?

Experts Pls help me...

Posted 26-Nov-14 1:49am

VidyasagarSTGM

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[no name] 26-Nov-14 7:59am

Because data are in buffer. You can use fflush to force that data will be written to file (without closing the file).

VidyasagarSTGM 26-Nov-14 22:50pm

Thanks Bruno...

2 solutions

Solution 1

Read the documentation : http://www.cplusplus.com/reference/cstdio/fclose/[^]

Posted 26-Nov-14 1:55am

Mehdi Gholam

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Kornfeld Eliyahu Peter · Accepted Answer · 2014-11-26T02:01:00

Solution 2

Read/write are buffered in C/C++ (and in many more languages and OSs) so until you close the file it may not be complete (even parts of it are already written)...

MSDN:
all buffers associated with the stream are flushed prior to closing

http://msdn.microsoft.com/en-us/library/fxfsw25t.aspx[^]

Posted 26-Nov-14 2:01am

Kornfeld Eliyahu Peter

Comments

Sergey Alexandrovich Kryukov 26-Nov-14 11:29am

5ed.
—SA

Kornfeld Eliyahu Peter 26-Nov-14 12:13pm

Thank you...