Checking count of bytes read by istream::read()

Question

Is there posibility (any method) to check count of bytes read by function presented below:

istream& read (char* s, streamsize n);

I recommend you check an [`std::istream` reference](http://en.cppreference.com/w/cpp/io/basic_istream). I'm sure you'll find a fitting function to return the *count* of the number of bytes read. — Some programmer dude, Apr 03 '14 at 14:16
-1: Spend thirty seconds reading the documentation for the language features that you use. — Lightness Races in Orbit, Apr 03 '14 at 14:33

score 10 · Accepted Answer · answered Apr 03 '14 at 14:21

10

std::streamsize gcount() const;

Returns the number of characters extracted by the last unformatted input operation.

answered Apr 03 '14 at 14:21

4pie0

score 2 · Answer 2 · answered Apr 03 '14 at 14:37

2

you can use gcount

stream.read(x, sizeof x)
stream.gcount();

answered Apr 03 '14 at 14:37

trubo

3

Is this just a ripoff of the above answer? You even have the same link. -1 – PlasmaPower Apr 03 '14 at 14:59

2 Answers2