OpenMPT Style Guide

Note: This applies to all source code except for libopenmpt/ and openmpt123/ directories. Use libopenmpt style otherwise.

(see below for an example)

Place curly braces at the beginning of the line, not at the end
Generally make use of the custom index types like SAMPLEINDEX or ORDERINDEX when referring to samples, orders, etc.
When changing playback behaviour, make sure that you use the function CSoundFile::IsCompatibleMode() so that modules made with previous versions of MPT still sound correct (if the change is extremely small, this might be unnecessary)
CamelCase function and variable names are preferred.

void Foo::Bar(int foobar)
{
    while(true)
    {
        // some code
    }
}