On 24/04/11 13:12, Beman Dawes wrote:
This proposal provides a very simple solution that works with standard library input and output streams. The one caveat is that the stream must be opened with filemode std::ios_base::binary to avoid certain data values being treated as line endings.
int main() { fstream f("binary_stream_example.dat", std::ios_base::trunc | std::ios_base::in | std::ios_base::out | std::ios_base::binary);
int32_t x = 0x01020304; int32_t y = 0;
f<< bin(x); // write 4 bytes f.seekg(0); f>> bin(y); // read 4 bytes
BOOST_ASSERT(x == y);
return 0; }
I don't like bin() as others note. I think you have a couple of options. - use binary() - to match use of std::ios_base::binary - use raw() - which seems to imply exactly what you want - use bytes() - just like your comments - use as_binary() or as_raw() or as_bytes()
For docs, header, and example code, see http://mysite.verizon.net/beman/binary_stream/binary_stream.html http://mysite.verizon.net/beman/binary_stream/binary_stream.hpp http://mysite.verizon.net/beman/binary_stream/binary_stream_example.cpp
Is there interest in this for Boost?
Yes
It seems way too small and simple to be a whole library itself. Are there any ideas where it should live and what namespace it should be in?
iostreams, utility, binary_stream? I'm thinking that some of what this offers is complimentary to the endian library in that endian allows streaming of raw values while preserving endianness. Jamie