ostream& operator<<(ostream& out, String const& s) { ostream& out << ss; return out; } s - char *
Error: Reference to type 'std :: basic_ostream' must be initialized
How to write correctly?
Dmitry Dmitry
3 one
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1 answer
ostream& out << ss; You say: out is a link to ostream (link to which object?) This is a newly announced link, although it has the same name as the function argument. The argument in already said that this is a reference to an object of type ostream , which you pass to the function. So just use it:
out << ss; and further:
not String const& s , but const String& s
AR Hovsepyan AR Hovsepyan
6.315 2 five 21
- Regarding "more": people have a different style; The one that you indicated is no better than what the author used. - ixSci
- @ixSci, basically you are right, but there are such things as readability and common style ... - AR Hovsepyan
- There is no such thing as a “conventional style”, at least in C ++. And this option is often found in code in people, because
String const&corresponds to the type reading rule in C ++: a reference to a constant String. - ixSci
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