Mattias Engdegård <mattias@xxxxxxxxxxxx> writes:
| Using a union intermediate instead,
|
| union { double d; uint64_t x; } u;
| u.d = something;
| uint64_t x = u.x;
|
| works as expected, but I would like to know why - if it is a matter of luck
| with the current implementation it might cease working when the compiler
| changes or becomes more aggressive in the future.
that union trick is invalid as well, from the standard point of view.
However, GCC makes a guarantee that it will be supported.
