I tried typedef string Colour; struct edge_properties { vector < set< Colour
& > eColours;
} But it did not compile. Shouldn't it ? Thanks -JR
typedef string Colour;
struct edge_properties {
vector < set< Colour > & > eColours;
}
No, it won't compile. Template arguments of a vector are required to be default constructible. Reference types (set<color>&) are not default constructible. See: set<color>& x; // Error. Andrew Sutton andrew.n.sutton@gmail.com
AMDG Andrew Sutton wrote:
typedef string Colour;
struct edge_properties {
vector < set< Colour > & > eColours;
}
No, it won't compile. Template arguments of a vector are required to be default constructible.
The template arguments of vector are only required to be CopyConstructible and Assignable. In Christ, Steven Watanabe
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Andrew Sutton -
John Robertson -
Steven Watanabe