libgamecommon

libgamecommon provides a number of utility functions for working with binary files.

Classes

• stream_seg - transparently add and remove chunks of data in the middle of a stream
• stream_sub - make a C++ iostream appear as a subsection of a larger stream

Examples

Reading endian-specific data

using namespace camoto;

stream::file_sptr myfile(new stream::file());
myfile->open("test.dat");

uint16_t value;

// Read a 16-bit (two byte) little-endian integer
myfile >> u16le(value);

// Same again but value in file is in big-endian instead
myfile >> u16be(value);

// Reading multiple values
uint32_t value;
uint8_t byte;
myfile >> u32le(value) >> u8(byte);

Creating a segmented_stream

using namespace camoto;

stream::file_sptr myfile(new stream::file());
myfile->open("test.dat");

// Create a stream starting 10 bytes into test.dat and 15 bytes long.
stream::sub_sptr sub(new stream::sub());
sub->open(myfile, 10, 15, NULL);

sub->seekp(0, stream::start);
sub->write(...); // data is written at offset 10 in test.dat

Creating a segmented_stream

See the segmented_stream test code.

More information

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