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If you want to use RAII in C, just use the "cleanup" attribute of gcc. https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html https://gcc.gnu.org/o

• wffurr 2y ago
  *in non portable non standard C
  • gobblegobble2 2y ago
    Supported by both gcc and clang, so portable enough for most people. I also like glib's cleanup attribute wrappers: https://docs.gtk.org/glib/auto-cleanup.html https://docs.gtk.org/glib/auto-cleanup.html.
  • wyldfire 2y ago
    It is non portable, that's true. But defer [1] is at least undergoing discussions w/the standard committee. Didn't make it into C23 but maybe next time. [1] https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2895.htm https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2895.htm
• gustedt 2y ago
  That's not very practical if you have several operations to perform, you'd have to create a specialized function each time. So no, that extension is not an alternative to designing a new flow control feature. (And it is not new, other languages have it already.)