================
@@ -550,6 +550,39 @@ explicit ``overflow_behavior`` attribute.
// [-Wimplicit-overflow-behavior-conversion-pedantic]
}
+Format String Functions
+=======================
+
+When overflow behavior types are used with format string functions
(printf-family
+functions like ``printf``, ``fprintf``, ``sprintf``, etc., and scanf-family
+functions like ``scanf``, ``fscanf``, ``sscanf``, etc.), they are treated based
+on their underlying integer types for format specifier compatibility checking.
----------------
efriedma-quic wrote:
It's probably also worth mentioning that passing such integers to a varargs
function is, in general, guaranteed to be ABI-compatible, not just for format
functions.
https://github.com/llvm/llvm-project/pull/148914
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