What happens if you nest extern “C”?
Question
It looks like nesting extern "C" is legal. For example:
extern "C" extern "C" void foo();
The second extern "C" is essentially ignored. Is that guaranteed by the C++ standard? Where?
1 answers
solution1
26 ACCPTED 2018-01-04 16:47:10
Yes, but it's actually the first extern "C" that's ignored. To quote the standard [dcl.link]:
Linkage specifications nest. When linkage specifications nest, the innermost one determines the language linkage.
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