Run-Time Library Reference
_filelength, _filelengthi64
Gets the length of a file.
long _filelength( int fd ); __int64 _filelengthi64( int fd );
Parameters
Return Value
Both _filelength and _filelengthi64 return the file length, in bytes, of the target file associated with fd. If fd is an invalid file descriptor, this function invokes the invalid parameter handler, as described in Parameter Validation. If execution is allowed to continue, both functions return –1L to indicate an error and set errno to EBADF.
Requirements
|
Function |
Required header |
|---|---|
|
_filelength |
<io.h> |
|
_filelengthi64 |
<io.h> |
For more compatibility information, see Compatibility in the Introduction.
Example
See the example for _chsize.
.NET Framework Equivalent
See Also