-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 03/26/2015 14:03, Michal Necasek wrote: > > The question isn't whether a compiler can warn. The question is, > why should it?
Although this specific code has absolutely no problem, compilers are not smart enough to read authors' mind yet. ;-) > What you quoted doesn't contradict what Frank said. There is a very > well defined pointer to bool conversion. So what's the problem? Or > in other words, what is the semantic difference between The difference is > if (ptr) ptr is converted to bool type first > and > > if (ptr != NULL) ptr is compared to nullptr (if NULL is correctly defined as nullptr). Basically, the first is a conversion and the second is a comparison. Jung-uk Kim -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJVFFcDAAoJEHyflib82/FGGvEIAJCfpg7NhDmUpQ41jLuwmRRJ TRqA0l+9M79C9VjB1D1eeQeBmbVSlB42VDDwujk3/9g8+2Dpy60XPMSkUUpe1BiJ e+IiQ00e1xYmVeS4a0H230Rd68fzdGMlZwatzN+B6S2EqdIdO+i4Ui3PgyV65ICP wcVOCZSF92ZfBbSppVl4mkXcdyRfHPhxMiO8+9MkkJUAy4aPx0jmRZsFWmSnsldH 99zbbcwnb43Vl51KAhzz7MvPCECt030xxMiLAXisx2qgoOgfXDGVKVDgiCEnJN17 1rJWJZ9c2SywKXW6s0mHi/34vFTwjq9mr0OrTgvfXYZ0qEgkqJqnWQVgU56/rd4= =MIUw -----END PGP SIGNATURE----- _______________________________________________ vbox-dev mailing list vbox-dev@virtualbox.org https://www.virtualbox.org/mailman/listinfo/vbox-dev
