Declaration.
size_t fread ( void * ptr, size_t size, size_t count, FILE * stream );
Parameters
- ptr
- Pointer to a block of memory with a minimum size of (size*count) bytes.
- size
- Size in bytes of each element to be read.
- count
- Number of elements, each one with a size of size bytes.
- stream
- Pointer to a FILE object that specifies an input stream.
fread example)
FILE *infile, *outfile;
int width = 800, height=600;
char buf[32];
// Prepare data for buf[32]
// ... Your code here
// Create a binary file.
outfile = fopen("mytest.dat", "wb");
fwrite(&width, 4, 1, outfile);
fwrite(&height, 4, 1, outfile);
fwrite(buf, 1, 32, outfile);
fclose(outfile);
// Read the binary file created above.
infile = fopen("mytest.dat", "rb");
fread(&width, 4, 1, infile);
fread(&height, 4, 1, infile);
fread(buf, 1, 32, infile);
fclose(infile);
