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[std-proposals] Return type of string_view::remove_suffix

From: Frederick Virchanza Gotham <cauldwell.thomas_at_[hidden]>
Date: Fri, 6 Jan 2023 15:17:36 +0000
I had a function like this:

    extern void Func(string_view);

And I wanted to call it as follows:

    string str("monkey5");
    Func( string_view(str).remove_suffix(1u) ); // remove the '5'

but this didn't compiler because 'remove_suffix' returns void.

Would it not have made sense for 'remove_suffix' to be defined as:

class std::string_view {
    string_view &remove_suffix(size_t) &;
    string_view &&remove_suffix(size_t) &&;
    string_view &remove_prefix(size_t) &;
    string_view &&remove_prefix(size_t) &&;

so that we can do stuff like:

    string str("monkey5");
    Func( string_view(str).remove_suffix(1u).remove_prefix(2u) );

Received on 2023-01-06 15:17:48