I\'m working on an embedded platform (ARM) and have to be careful when dealing with bit patterns. Let\'s pretend this line is beyond my influence:
Here\'s my code: struct RS_Token { char id; char cleanup; unsigned char array[sizeof (std::string) > sizeof (double) ? sizeof (std::string) : sizeof (double)];
Just a simple question,having this: fftw_complex *H_cast; H_cast = (fftw_complex*) fftw_malloc(sizeof(fftw_comp开发者_运维知识库lex)*M*N);
First of all, this is not a duplicate of Why do we have reinterpret_cast in C++ when two chained static_cast can do it\'s job?.
There\'s a set of questions regarding c开发者_StackOverflow中文版ross-casts (cast from T1* to unrelated T2*), for example this and this. The answer usually goes like this: reinterpret_cast is implemen
return *reinterpret_cast<UInt32*>((reinterpret_cast<char*>(this) + 2)); Struct is pragma packed 1 and contains a bunch of uint, char, short fields...
I need to use a member function pointer that takes in an argument of base class that used in other code. Well, simply I want do to [something] like the example below. This code works fine, but I wonde
int *pt = 0; long i = reinterpret_cast<long>(pt); Is i guaranteed to be 0? Is this well defined or implementation-defined?
That is, on disk, if I have an array of std::complex, is it stored RIRIRIRI or RRRRIIII or something else?
I am trying to learn about static_cast and reinterpret_cast. If I am correct the standard (9.2.18) says that reinterpret_cast for pod data is safe:
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