3 ms·

Why did I not know that this: case 1 ... 10: Is valid C? I have been programming in C for years, what standard is this from?

• G4E 2y ago
  Unless it has been recently standardized it's not valid C, it's a GNU extension.
• dekhn 2y ago
  It appears to be a GNU C extension: https://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html https://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html but I couldn't find the history of the extension. I believe it is not in standard C (not sure about clang).
  • astrange 2y ago
    Clang supports almost all GNU C extensions. Maybe not nested functions because they need executable stacks.
  • nj5rq 2y ago
    I just tried it, and it works with clang version 17.0.6.