diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md index 6b321e7..39d4d7c 100644 --- a/CppCoreGuidelines.md +++ b/CppCoreGuidelines.md @@ -7243,6 +7243,10 @@ Avoid using the loop variable for other purposes after the loop. **Enforcement**: Warn when a variable modified inside the `for`-statement is declared outside the loop and not being used outside the loop. +**Discussion**: Scoping the loop induction variable to the loop body also helps code optimizers greatly. Recognizing that the induction variable +is only accessible in the loop body unblocks optimizations such as hoisting, strength reduction, loop-invariant code motion, etc. + + ### ES.75: Avoid `do`-statements