On Sat, Sep 21, 2013 at 06:37:09PM +0100, Brian Drummond wrote: > On Sat, 2013-09-21 at 18:46 +0200, wempwer@xxxxxxxxx wrote: > > int ab = 50000; > > int bc = 50000; > > int r = ab * bc; > > > > Is it possible for gcc to produce a > > warning in such situation? > > Yes, gcc the Gnu Compiler Collection can produce such a warning: > > procedure test_ovf is > ab : integer := 50000; > bc : integer := 50000; > r : integer := ab * bc; > begin > null; > end test_ovf; > > gcc -c test_ovf.adb > test_ovf.adb:4:22: warning: value not in range of type > "Standard.Integer" > test_ovf.adb:4:22: warning: "Constraint_Error" will be raised at run > time > However I'm not sure it is allowed to do the same with C. Wow, what's the language you use here? It looks like some kind of Pascal. Sorry guys for not being 100% clear in this question - I am only interested in C language. -- <wempwer@xxxxxxxxx>
