Hi! Thanks for your bug report. Would you mind re-check with clang from testing or unstable? (Version 2.7-2 or later).
Thanks! Arthur. 2010/6/9, Julian Andres Klode <[email protected]>: > Package: clang > Version: 2.6-3 > Severity: normal > > Clangs behaviour differs depending on where NULL is > defined. If NULL is defined locally, a warning is > issued if NULL is assigned to an int variable. If > the (same) definition of NULL is included via a > header file, no warning is issued. > > 1. Definition of NULL in clang's stddef.h > ========================================== > #ifdef __cplusplus > #define NULL __null > #else > #define NULL ((void*)0) > #endif > > 2. Code causing a warning > ========================= > #define NULL ((void*)0) > > int main(void) { > int i = NULL; > return 0; > } > > 2.1. Output compiling example 2 > ------------------------------- > a.c:4:12: warning: incompatible pointer to integer conversion initializing > 'void *', expected 'int' > int i = NULL; > ^~~~ > a.c:1:14: note: instantiated from: > #define NULL ((void*)0) > ^~~~~~~~~~ > 1 diagnostic generated. > > > 3. Code without warning > ======================== > #include <stdlib.h> > > int main(void) { > int i = NULL; > return 0; > } > > 3.1 Output compiling example 3 > ------------------------------ > > (Well, there is no output at all) > > -- System Information: > Debian Release: lenny/sid > APT prefers unstable > APT policy: (990, 'unstable'), (350, 'experimental') > Architecture: amd64 (x86_64) > > Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores) > Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > > Versions of packages clang depends on: > ii libc6 2.11.1-2 Embedded GNU C Library: Shared > lib > ii libffi5 3.0.9-2 Foreign Function Interface > library > ii libgcc1 1:4.4.4-4 GCC support library > ii libstdc++6 4.4.4-4 The GNU Standard C++ Library v3 > > Versions of packages clang recommends: > ii llvm-dev 2.6-9 Low-Level Virtual Machine > (LLVM), > > clang suggests no packages. > > -- no debconf information > > -- > Julian Andres Klode - Debian Developer, Ubuntu Member > > See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/. > -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
