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Quote:

Originally Posted by ****** No it doesn't, it overwrites part of the stack, and you don't know WHAT part of the stack - it just happened to work in your exact use-case.

Functions that return strings/arrays stores their addresses at 12+numargs() so that function appears to be legit.

Furthermore, if you're returning strings in a variadic function it will only count the static arguments, which is a bug. Here's how I fixed that: https://github.com/oscar-broman/strl...rlib.inc#L1304