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C File Q&A » fwrite » fopen 

1. Why doesn't fwrite() write a Binary File using "wb", in C, on Mac OS X?    stackoverflow.com

For the sake of learning C and understanding the difference between Binary Files and Text Files, I'm attempting to write a string to file as both file types like so:

char * ...

2. fopen returns NULL pointer?    stackoverflow.com

I'm working on a simple file splitter/merger program in C language. The problem is, for some reason fopen returns NULL, and because of that, my program is crashing at the fwrite statement. ...

3. fopen does not create new file for fwrite    cboard.cprogramming.com

I'm trying to use fwrite to write an array of 65,536 8-bit values with a few other pieces of data added in. While I know how to use fwrite, the problem I'm having is with fopen - the pointer is always 0 when using wb mode. Basically: Code: int StartHeight; char SlopeData[65536]; ... // in a function GetCurrentDirectory(MAX_PATH, BasePath); // the ...

4. fopen, fwrite, and endian issues    cboard.cprogramming.com

Ok, I'm trying to write a file out, but the data needs to be in big endian format. Intel of course is in little endian. I search around for stuff, and with the standard C library, it seems nothing is around to output easiliy from one to the other, or to even specify which endianess you are using. This seems like ...

5. open,read,write/ fopen,fread,fwrite    forums.devshed.com

Hi All, I have a clarification. As we know we can use open, read, write (low level functions) for file IO. Similarly fopen,fread,fwrite (high level functions). But when to use which functions? Are there any advantages and disadvantages of using low level or high level functions? Any clarifications on this would be greatly appreciated.

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