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C++: Difference between revisions
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[https://en.cppreference.com/w/cpp/language/lambda Reference] | [https://en.cppreference.com/w/cpp/language/lambda Reference] | ||
=== | |||
====Casting==== | |||
[https://stackoverflow.com/questions/332030/when-should-static-cast-dynamic-cast-const-cast-and-reinterpret-cast-be-used Types of casts] | |||
C++ has several types of casts. | |||
These are the main ones you should use. | |||
* <code>static_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>. | |||
===Array=== | |||
<code>#include <array></code><br> | |||
In C++, you can use <code>std::vector</code> which gives you a resizable array. | In C++, you can use <code>std::vector</code> which gives you a resizable array. | ||
This will allocate an array in the heap.<br> | This will allocate an array in the heap.<br> | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
=== | ===String=== | ||
<code>#include <string></code><br> | |||
====String Interpolation==== | ====String Interpolation==== | ||
[https://stackoverflow.com/questions/10410023/string-format-alternative-in-c Reference] | [https://stackoverflow.com/questions/10410023/string-format-alternative-in-c Reference] | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
===Filesystem=== | ===Filesystem=== | ||
<code>#include <fstream></code><br> | |||
====Reading and Writing==== | ====Reading and Writing==== | ||
Reading and writing is done using <code>fstream</code>.<br> | Reading and writing is done using <code>fstream</code>.<br> | ||
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===Regular Expressions=== | ===Regular Expressions=== | ||
<code>#include <regex></code><br> | |||
[https://en.cppreference.com/w/cpp/regex Reference] | [https://en.cppreference.com/w/cpp/regex Reference] | ||
<!-- | <!-- | ||
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===Thread=== | ===Thread=== | ||
<code>#include <thread></code><br> | |||
==== Sleep ==== | ==== Sleep ==== | ||
<syntaxhighlight lang="C++"> | <syntaxhighlight lang="C++"> | ||
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===Memory=== | ===Memory=== | ||
<code>#include <memory></code><br> | |||
====Smart Pointers==== | ====Smart Pointers==== | ||
[https://www.geeksforgeeks.org/auto_ptr-unique_ptr-shared_ptr-weak_ptr-2/ Smart Pointers]<br> | [https://www.geeksforgeeks.org/auto_ptr-unique_ptr-shared_ptr-weak_ptr-2/ Smart Pointers]<br> | ||
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</syntaxhighlight> | </syntaxhighlight> | ||
=== | ===Limits=== | ||
<code>#include <limits></code><br> | |||
==Programming Styles== | ==Programming Styles== | ||