Comment by uecker
1 day ago
Language standards have much less power than people think and compiler-vendors are of course present in the standard working groups. Ultimately, the users need to put pressure on the compiler vendors. Please file bugs - even if this often has no effect, it takes away the argument "this is what our users want". Also please support compilers based on how they deal with UB and not on the latest benchmark posted somewhere.
Language standards have plenty of power over compiler vendors, however, very few people that are not involved in writing compilers tend to participate in the standards process. Standards bodies bend to the will of those participating.
Not really, there are several features that can be used as example of compiler vendors ignoring standard features that they deemed inconvenient to implement, or undesirable for their customers.
https://en.cppreference.com/w/cpp/compiler_support.html
https://en.cppreference.com/w/c/compiler_support.html