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Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...e languages that I've never really understood. I've obviously used regular casts i.e.
8 Answers
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Get an OutputStream into a String
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Just casting a byte to char will only work on ascii. Use ByteArrayOutputStream like Horcrux7
– Dave Ray
Oct 11 '09 at 22:45
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Difference between a Structure and a Union
...ome_test_pointer;
some_test_pointer can point to int* or double*. If you cast an address of type test to int*, it will point to its first member, a, actually. The same is true for an union too. Thus, because an union will always have the right alignment, you can use an union to make pointing to so...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
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static_cast is the first cast you should attempt to use. It does things like implicit conversions between types (such as int to float, or pointer to void*), and it can also call explicit conversion functions (or implicit ones). In m...
Random string generation with upper case letters and digits
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If you want to skip the string casting & hyphen replacing, you can just call my_uuid.get_hex() or uuid.uuid4().get_hex() and it will return a string generated from the uuid that does not have hyphens.
– dshap
Apr ...
Why use static_cast(x) instead of (int)x?
I've heard that the static_cast function should be preferred to C-style or simple function-style casting. Is this true? Why?
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
...ion has been removed, an explicit conversion still works, so you can add a cast. I would not, however, consider this "fixing" the code.
Truly fixing the code requires changing the type of the pointer to the correct type:
char const *p = "abc"; // valid and safe in either C or C++.
As to why it w...
What is the difference between static_cast and C style casting?
Is there any reason to prefer static_cast<> over C style casting? Are they equivalent? Is their any sort of speed difference?
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What is a handle in C++?
...ss HANDLE around as an opaque value.
In the code that uses the object, it casts the pointer to a real structure type and uses it:
int doSomething(HANDLE s, int a, int b) {
Something* something = reinterpret_cast<Something*>(s);
return something->doit(a, b);
}
Or it uses it a...
Android Center text on canvas
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And probably best casting _text.Length to a float as it obviously won't work for odd text lengths.
– paj7777
Apr 8 '13 at 9:44
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