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https://github.com/NixOS/nix
synced 2025-07-06 17:31:47 +02:00
5b6a21acc5
Casting function pointers seems to be almost always UB. See https://stackoverflow.com/questions/559581/casting-a-function-pointer-to-another-type Fixed by doing the casting of `void*` to `std::string*` inside the function instead. Caught by UBSan.
15 lines
331 B
C++
15 lines
331 B
C++
#pragma once
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#include <string>
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namespace nix::testing {
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void observe_string_cb(const char * start, unsigned int n, void * user_data);
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inline void * observe_string_cb_data(std::string & out)
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{
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return (void *) &out;
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};
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#define OBSERVE_STRING(str) nix::testing::observe_string_cb, nix::testing::observe_string_cb_data(str)
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}
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