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davidt84
11 months ago
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C stdlib isn't threadsafe and even safe Rust didn'...
Hmm, I'm apparently correct for C++11, where calling getenv only is thread safe, but that's not guaranteed by earlier standards (or, as far as I can tell, by C or POSIX).
kazinator
11 months ago
[–]
I'm surprised C++ would have anything to say about
getenv
; mostly it just includes the standard C library via normative reference.
davidt84
11 months ago
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parent
[–]
Nevertheless,
https://en.cppreference.com/w/cpp/utility/program/getenv
kazinator
11 months ago
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root
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[–]
Interesting. So in a multi-threaded C++ program that only calls the std:: getenv function, everything is fine.
If anything calls the C getenv function, like a third party library, things are maybe not fine.
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