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Windows) the file must be opened with 'b' included in fopen() mode parameter. $filename="c:\\files\\somepic.gif";

By Yarin in forum General Discussions Replies: 37 Last Post: 07-24-2009, 11:40 AM Wireless Network Linux & C Testbed By james457 in forum Networking/Device Communication Replies: 3 Last Post: 06-11-2009, 11:03 Don't I also need ferror() to account for errors? 03-12-2006 #4 Dave_Sinkula View Profile View Forum Posts Just Lurking Join Date Oct 2002 Posts 5,005 Why not just check whether fread stream Pointer to a FILE object that specifies an input stream. This volume of IEEEStd1003.1-2001 defers to the ISOC standard.

If EOF is terrible, then I'd say repeat -- or add to -- the after-loop check to bail. The file position indicator for the stream (if defined) shall be advanced by the number of bytes successfully read. All Rights Reserved. As manual suggested: fread() and fwrite() return the number of items successfully read or written do I have to write code like this?

If execution is allowed to continue, this function sets errno to EINVAL and returns 0.See _doserrno, errno, _sys_errlist, and _sys_nerr for more information on these, and other, error codes.RemarksThe fread function Use the feof or ferror function to distinguish a read error from an end-of-file condition. Anyhow the question stems from the following lines of code: Code: #include #include #include #include #include #include #define LOG "/var/run/utmp" static int process_type(struct utmp *user) The value of a partially read item cannot be determined.This function locks out other threads.

This function is intended to be used in a fashion similar to the following example: size_t how_many = fread(ptr, size, nmemb, fp); if (how_many == 0 && ferror(fp)) { char message[3000]; The file pointer associated with stream (if there is one) is increased by the number of bytes actually read. Thanks Quick Navigation C Programming Top Site Areas Settings Private Messages Subscriptions Who's Online Search Forums Forums Home Forums General Programming Boards C++ Programming C Programming C# Programming Game Programming Networking/Device Dev centers Windows Office Visual Studio Microsoft Azure More...

bytes_read = fread(buf, sizeof(buf), 1, fp); ... Now here's the function:

function send_file($name) {
$path = "protected/".$name;
It is easier to write an incorrect program than understand a correct one. 40. Declaration Following is the declaration for fread() function.

share|improve this answer answered Feb 22 '12 at 5:49 Vaughn Cato 42k44370 add a comment| up vote 0 down vote Yes. If the file is small, it would be better to use "file()" however.

function strpos_count($haystack, $needle, $i size The original size, exactly as passed to the fread(3) system call. RETURN VALUES The functions fread() and fwrite() advance the file position indicator for the stream by the number of bytes read or written.

The st_atime field shall be marked for update by the first successful execution of fgetc(), fgets(), fgetwc(), fgetws(), fread(), fscanf(), getc(), getchar(), gets(), or scanf() using stream that returns data not nmemb The original nmemb, exactly as passed to the fread(3) system call. However, there hasn't been much traffic. size Size, in bytes, of each element to be read.

size The original size, exactly as passed to the fread(3) system call. Feb 22 '12 at 5:56 @R.. - Uh... Why is it a bad idea for management to have constant access to every employee's inbox? If the attempt succeeds, // the program displays the number of actual items read. #include int main( void ) { FILE *stream; char list[30]; int i, numread, numwritten; // Open

UNIX is a registered Trademark of The Open Group. The magnitude of taking discrete cosine transform of an image two times is similar to the original more hot questions question feed lang-c about us tour help blog chat data legal Because of possible differences in element length and byte ordering, files written using fwrite() are application-dependent, and possibly cannot be read using fread() by a different application or by the same Any conflict between the requirements described here and the ISOC standard is unintentional.

Reading stops as soon as one of the following conditions is met: length bytes have been read EOF (end of file) is reached a packet becomes available or the socket timeout If it fails, you would normally not try again. If an error occurs, the resulting value of the file position indicator for the stream is unspecified. Otherwise, if a read error occurs, the error indicator for the stream shall be set, [CX] and errno shall be set to indicate the error.

GNU 2015-07-23 FREAD(3) Copyright and license for this manual page HTML rendering created 2016-10-08 by Michael Kerrisk, author of The Linux Programming Interface, maintainer of the Linux man-pages project. The errno global variable will be used to obtain the error value to be decoded. But... If a partial element is read, its value is unspecified. [CX] The fread() function may mark the st_atime field of the file associated with stream for update.

Parameters handle A file system pointer resource that is typically created using fopen(). fp The original fp, exactly as passed to the fread(3) system call. eg: bytes 500-/1234
4. If a suitable message return buffer is supplied, this function is thread safe.

This will be overwritten by the next call to any libexplain function which shares this buffer, including other threads. The content you requested has been removed. This function is intended to be used in a fashion similar to the following example: size_t how_many = fread(ptr, size, nmemb, fp); if (how_many == 0 && ferror(fp)) { int err Framing "standalone" class output with "framed" and others A Shadowy Encounter New tech, old clothes With modern technology, is it possible to permanently stay in sunlight, without going into space?

size − This is the size in bytes of each element to be read. We appreciate your feedback. If you need a non-locking version, use _fread_nolock.RequirementsFunctionRequired headerfreadFor additional compatibility information, see Compatibility in the Introduction.Example Copy // crt_fread.c // This program opens a file named FREAD.OUT and // writes Note: This function is not thread safe, because it shares a return buffer across all threads, and many other functions in this library. explain_message_fread void explain_message_fread(char *message, int message_size, void

The function fread() does not distinguish between end-of-file and error, and callers must use feof(3) and ferror(3) to determine which occurred. Browse other questions tagged c file stream or ask your own question. End of informative text. Forum Today's Posts C and C++ FAQ Forum Actions Mark Forums Read Quick Links View Forum Leaders What's New?

Learning resources Microsoft Virtual Academy Channel 9 MSDN Magazine Community Forums Blogs Codeplex Support Self support Programs BizSpark (for startups) Microsoft Imagine (for students) United States (English) Newsletter Privacy & cookies Modifying your example. If it's not - you should use ferror() or feof() to determine whether you've reached the end of the file and/or encountered an error. see where placed in the function below:

function readfile_chunked( $filename, $retbytes = true ) {

I don't think that's correct.