void * csdbg::util::memswap ( void *  mem, u32  sz  )

static

Reverse the byte order of a memory block.

Parameters

[in,out]	mem	the base address of the block
[in]	sz	the block size

Returns

the first argument

Note

Used to convert big endian data to little endian and vice versa

Definition at line 374 of file util.cpp.

References __D_ASSERT, likely, and unlikely.

{
  __D_ASSERT(mem != NULL);
  if ( unlikely(mem == NULL) )
    return mem;

  u8 *l = static_cast<u8*> (mem);
  u8 *r = l + sz - 1;
  while ( likely(l < r) ) {
    u8 tmp = *l;
    *(l++) = *r;
    *(r--) = tmp;
  }

  return mem;
}