how to re-initialize a vector

[Lorey]

Hi!

Anybody knows how to reinitialize a vector?
Like for example, in the code below, I already put values inside emergencyCallPriorities.

std::vector<RadioPriority> emergencyCallPriorities

I need to reset all the values. and will put a new values again....

 

[ArkM]

v.erase(v.begin(),v.end());

 

[Lorey]

thanks!

i just found out that it is equals to using .clear().

 

[cpjust]

.clear() will erase all elements in the vector, but it will not shrink the size of the vector. If you need to clear the vector and shrink the size, use the swap trick:

vector<something> v;
...
vector<something>().swap( v );  // Clear & minimize v.