fwrite
Syntax
int fwrite(void* buffer, int size, int numitems, void* file)
Arguments
- buffer
- A pointer to the data buffer containing the data you want to write to the file.
- size
- The size of the data blocks you want to write out (eg if writing 32-bit integers, you might set this to 4 bytes).
- numitems
- The number of blocks of data you want to write to the file (eg number of integers you want to write to the file in a row).
- file
- The pointer/handle to the already opened file you want to write to.
Return
Returns the number of items that were successfully written to the file.
Description
Writes data to a previously opened file or stream.
Comments
The size and numitems parameters can be confusing - it's often easier to set the size parameter to the number of bytes you want to write to the file, and keep the numitems parameter set to 1.
Also see
- fopen, fread, fseek, fsetpos, fclose
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