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C++: Difference between revisions
→Sequences
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* <code>dynamic_cast</code> | * <code>dynamic_cast</code> | ||
If you're casting between things but do not want to change the bit-pattern (e.g. binary data or pointers), you can also use <code>reinterpret_cast</code>. | If you're casting between things but do not want to change the bit-pattern (e.g. binary data or pointers), you can also use <code>reinterpret_cast</code>. | ||
===String=== | ===String=== | ||
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===Sequences=== | ===Sequences=== | ||
====std::array==== | |||
<code>#include <array></code><br> | |||
In C++, you can use <code>std::vector</code> which gives you a resizable array. | |||
This will allocate an array in the heap.<br> | |||
[https://shendrick.net/Coding%20Tips/2015/03/15/cpparrayvsvector.html array vs vector]<br> | |||
If you need a static sized array, you can use <code>std::array</code> in the <code>array</code> header.<br> | |||
This wrapper around C-style arrays gives us size information and allows the array to be passed around by reference while keeping the array on the stack unlike <code>std::vector</code>.<br> | |||
If you want to allocate a static array on the heap, you can do so as follows: | |||
<syntaxhighlight lang="C++"> | |||
auto my_arr = std::make_shared<std::array<char,64>>(); | |||
</syntaxhighlight> | |||
====std::vector==== | ====std::vector==== | ||
[https://en.cppreference.com/w/cpp/container/vector Reference]<br> | [https://en.cppreference.com/w/cpp/container/vector Reference]<br> | ||
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my_vec.back(); | my_vec.back(); | ||
</syntaxhighlight> | </syntaxhighlight> | ||
====std::deque==== | |||
Double-ended queue | |||
====std::list==== | ====std::list==== | ||