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< title > FatFs - f_truncate< / title >
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< div class = "para func" >
< h2 > f_truncate< / h2 >
< p > The f_truncate function truncates the file size.< / p >
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FRESULT f_truncate (
FIL* < span class = "arg" > fp< / span > < span class = "c" > /* [IN] File object */< / span >
);
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< div class = "para arg" >
< h4 > Parameter< / h4 >
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< dt > fp< / dt >
< dd > Pointer to the open file object to be truncated.< / dd >
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< h4 > Return Values< / h4 >
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< a href = "rc.html#ok" > FR_OK< / a > ,
< a href = "rc.html#de" > FR_DISK_ERR< / a > ,
< a href = "rc.html#ie" > FR_INT_ERR< / a > ,
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< a href = "rc.html#dn" > FR_DENIED< / a > ,
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< a href = "rc.html#io" > FR_INVALID_OBJECT< / a > ,
< a href = "rc.html#tm" > FR_TIMEOUT< / a >
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< h4 > Description< / h4 >
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< p > The < tt > f_truncate< / tt > function truncates the file size to the current file read/write pointer. This function has no effect if the file read/write pointer is already pointing end of the file.< / p >
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< h4 > QuickInfo< / h4 >
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< p > Available when < tt > FF_FS_READONLY == 0< / tt > and < tt > FF_FS_MINIMIZE == 0< / tt > .< / p >
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< h4 > See Also< / h4 >
< p > < tt > < a href = "open.html" > f_open< / a > , < a href = "lseek.html" > f_lseek< / a > , < a href = "sfile.html" > FIL< / a > < / tt > < / p >
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< p class = "foot" > < a href = "../00index_e.html" > Return< / a > < / p >
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