5,321
edits
C++: Difference between revisions
→std::vector
| Line 280: | Line 280: | ||
===Sequences=== | ===Sequences=== | ||
====std::vector==== | ====std::vector==== | ||
[https://en.cppreference.com/w/cpp/container/vector Reference] | [https://en.cppreference.com/w/cpp/container/vector Reference]<br> | ||
Use vector for almost everything... | Use vector for almost everything...<br> | ||
It is an ArrayList. | It is an ArrayList.<br> | ||
Note that <code>vector<bool></code> is not an array of bools.<br> | |||
This has several nuances so you should use <code>vector<char></code> instead.<br> | |||
<syntaxhighlight lang="c++"> | <syntaxhighlight lang="c++"> | ||
// Basics | // Basics | ||
| Line 297: | Line 299: | ||
my_vec.empty(); | my_vec.empty(); | ||
// Equivalent to my_vec[0]; | |||
// Undefined on empty vectors | |||
my_vec.front(); | |||
// Equivalent to my_vec[my_vec.size()-1]; | |||
// Undefined on empty vectors | |||
my_vec.back(); | |||
</syntaxhighlight> | </syntaxhighlight> | ||