signed is undefined and has been since 1992 (in GCC)

[Gabriel Dos Reis]

Robert Dewar <dewar@adacore.com> writes:

| Gabriel Dos Reis wrote:
| 
| > The strict aliasing rule by itself does not show it is not a high level
| > assembly language.  There are chips out there where you cannot access
| > data willy-nilly through random register types.
| 
| And there are chips for which signed arithmetic is not wrap around!

yes, but that is irrelevant,  the assumptin was made that
one knows what the chip provides.  

numeric_limits<T> is target dependent.

-- Gaby