> If http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2016/p0431r0.htm > make it into C++17, then the sequence would be left-to-right. > If this proposal will be accepted, will it make expressions like (i += 1) - (i += 2) to have well-specified behavior? If so, can the new standard invalidate some existing compilers? Is there a similar proposal for C? Thanks. Andrew Makhorin
