Availability:C-language interface function
*data, size_t size, size_t elems, IOSTREAM *s)
void *data, size_t size, size_t elems, IOSTREAM *s)Emulations of the POSIX fread() and fwrite() calls for Prolog streams.
These functions read or write elems objects of size size
and return the number of objects successfully read or written. Data
exchange is binary (even if the stream is in text mode) and unlike
read() and write(), these functions keep reading or writing until
Sfread()) or an