mortennobel/cpp-cheatsheet
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Add dynamic_pointer_cast

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Morten Nobel-Joergensen 2018-09-23 20:00:03 +02:00
parent 4f0a5ee779
commit 8755c27259
1 changed files with 4 additions and 1 deletions
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@ -180,7 +180,7 @@ x++ // Add 1 to x, evaluates to original x (postfix)
x-- // Subtract 1 from x, evaluates to original x
typeid(x) // Type of x
typeid(T) // Equals typeid(x) if x is a T
dynamic_cast< T>(x) // Converts x to a T, checked at run time
dynamic_cast< T>(x) // Converts x to a T, checked at run time.
static_cast< T>(x) // Converts x to a T, not checked
reinterpret_cast< T>(x) // Interpret bits of x as a T
const_cast< T>(x) // Converts x to same type T but not const
@ -337,6 +337,9 @@ if (z == nullptr){
cout << "Z null";
}
cout << *q;
shared_ptr<B> r;
r = dynamic_pointer_cast<B>(t); // Converts t to a shared_ptr<B>
```
## `math.h`, `cmath` (floating point math)