$HOME, Not So Sweet $HOME
$HOME, Not So Sweet $HOME
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22 comments
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auto main() -> intWhat programming language is this even?!
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Looks like C++.
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TIL that you can declare return types this way in C++.
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I never understood why they added that
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Among other things it lets you define the return type in terms of the arguments to the function.
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because explicitly declaring types can be redundant, if the compiler knows a lot of the times you should also know
also because some types are extremely cursed: see std views/ranges
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They're useful for templates because the trailing version is resolved later
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Why would anyone bother writing it like that? That just seems like
int main()with extra steps. Like does auto enable some compiler optimisation of the return type that I'm not aware of?-
Defining the return type that way can be used when dealing with template sorcery - there's no use for it here though, not even for readability in any way.
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22 comments