This is the code from a book.
Why while loop is used?
I think the code will be same as using without while loop.Code:while ((bytesIn = fread (rec, 1, BUF_SIZE, inFile)) > 0) { bytesOut = fwrite (rec, 1, bytesIn, outFile); if (bytesOut != bytesIn) { perror ("Fatal write error."); fclose(inFile); fclose(outFile); return 4; } }
You think that without a loop it is still going to repeat reading? Why would you think that?
Quzah.
Hope is the first step on the road to disappointment.
try this. This will print complete stream.Code:count = fread( buffer, sizeof( char ), 11, stream ); cout<<buffer; if( ferror( stream ) ) { perror( "Read error" ); break; }
That's C++. This is a C forum.
Code:while(!asleep) { sheep++; }
ok just do
printf("%s",buffer);
instead of cout
No it won't. It will read 11 bytes. If the stream has 100000, you won't get more than 11.Originally Posted by freiza
Quzah.
Hope is the first step on the road to disappointment.
I think this will read 100000 bytes from the stream. (then what is the use of while)Code:count = fread( buffer, sizeof( char ), 100000, stream ); cout<<buffer; if( ferror( stream ) ) { perror( "Read error" ); break; }
I don't want to sound rubbish. I truly want to know thank you
And what happens if instead I have 10x that amount? Then again, it no longer works. Also, you have to have a buffer that is massive, instead of a small one using a loop. That's why you use a loop: to repeat doing something until you don't need to anymore.
I don't know why you feel the need to make this work without a loop.
Quzah.
Hope is the first step on the road to disappointment.
I got your point thank you.
