Defer available in gcc and clang
Summary
An in-depth look at the defer feature now available in GCC and Clang, anchored by a TS 25755 specification and practical code examples. The post explains how defer can improve resource cleanup and reduce spaghetti code, with caveats about clang's blocks extension and GCC's nested function fallback. It includes usage patterns for mutex handling and large allocations, plus notes on portability and compilation considerations.