On 21 September 2013 17:46, wrote:
> Is it possible for gcc to produce a
> warning in such situation?
If ab and bc are 'const' then G++ will warn:
o.cc: In function ‘int main()’:
o.cc:5:14: warning: integer overflow in expression [-Woverflow]
int r = ab * bc;
^
The C compiler still doesn't warn though, due to different rules for
how constants are handled between C and C++.
