Object Bytes

[majidkamali1370]

Hi.
How can I print bytes of an arbitrary object? I don't know anything about it's size. for example object is a class or a struct that I defined it.
For Example:

struct MY_STRUCT
{
   int a, b;
};

template <class T>
void print(T number); // <- This prints object T, bytes with 0 and 1
// for example: 01010101 10001000 00010001 00010001
//       => a = 01010101 10001000
//                            b = 00010001 00010001 

Thanks :-)

[PiMaster]

To get the size, you'd use sizeof(). To print binary, make a byte to binary function. If someone doesn't post it before me, I'll try to make one.

EDIT: Finished:

template<typename T>
void print(T value){
	unsigned numbytes=sizeof(T),byte,bit;
	char* pval=(char*)&value;
	for(byte=0;byte<numbytes;++byte){
		for(bit=0;bit<8;++bit){
			putchar(((pval[byte]>>bit)&1)+'0');}
		if(byte!=numbytes-1){
			putchar(' ');}}}

[Duthomhas]

You realize also that this is most likely to be entirely useless information. The byte-structure of a class has relatively few caveats placed upon it -- meaning the compiler can do stuff you wouldn't expect.

Besides endianness issues, there is also padding, vtables, and, in some cases, ordering issues.

[PiMaster]

It works with simple data types, and if he wants to change the endianness it's easy enough.

Just wondering, what would you suggest?