tree 6992c2814497eca1cab1542c57d2b8ab1c5b9c49
parent 81089f0fd16e4eaae06f1a4be9611303c4f1cabf
author apple-fcloutier <75502309+apple-fcloutier@users.noreply.github.com> 1741281142 -0800
committer GitHub <noreply@github.com> 1741281142 -0800
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[clang] Fix FP -Wformat in functions with 2+ attribute((format)) (#129954)

When defining functions with two or more format attributes, if the
format strings don't have the same format family, there is a false
positive warning that the incorrect kind of format string is being
passed at forwarded format string call sites.

This happens because we check that the format string family of each
format attribute is compatible before we check that we're using the
associated format parameter. The fix is to move the check down one
scope, after we've established that we are checking the right parameter.

Tests are updated to include a true negative and a true positive of this
situation.