Help: Typ conversion!!!!
i would like to convert a float or double variable into unsigned char variable and back.
float number_float = 23.453f;
unsigned char* number_char = (unsigned char*)malloc(sizeof(float));
number_char = reinterpret_cast<unsigned char*> (&number_float);
float* number_float_0 = reinterpret_cast<float*>(&number_char);
I am not getting the same value back.. why?
you print out the content of the wrong variable:
cout << number_float_0 << endl;
Let me remind you that:
A float's size is 32-bit
A char (unsigned too)'s size is 8-bit.
What you are doing is convert a POINTER TO float to a POINTER TO char.
Their size is equal, but you're doing it wrong.
float NumFloat = 2.f;
char * Pointer = (char *)(&NumFloat);
float * PointerFloat = (float *)(Pointer);
float DestFloat = *PointerFloat;
cout << DestFloat << endl;
This breaks C++'s type safety.
Be careful about that, don't play with it if you don't know pointers.
Your example featured a 4-byte memory leak and bad castings.
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