gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3
typedef unsigned char uint8_t;
void f(uint8_t __restrict__ foo[]) {
// no warnings/errors
}
void f2(unsigned char __restrict__ foo[]) {
// doesn't compile::
// test.cc:6: error: __restrict__ qualifiers cannot be applied to unsigned
char
}
The two functions should be equivalent, I think -- both erroring or neither
erroring. Verbose details follow.
$ gcc -v -save-temps test.cc
Using built-in specs.
Target: i486-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.4.3-4ubuntu5'
--with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--enable-multiarch --enable-linker-build-id --with-system-zlib
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.4 --program-suffix=-4.4 --enable-nls
--enable-clocale=gnu --enable-libstdcxx-debug --enable-plugin --enable-objc-gc
--enable-targets=all --disable-werror --with-arch-32=i486 --with-tune=generic
--enable-checking=release --build=i486-linux-gnu --host=i486-linux-gnu
--target=i486-linux-gnu
Thread model: posix
gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-mtune=generic' '-march=i486'
/usr/lib/gcc/i486-linux-gnu/4.4.3/cc1plus -E -quiet -v -D_GNU_SOURCE test.cc
-D_FORTIFY_SOURCE=2 -mtune=generic -march=i486 -fpch-preprocess
-fstack-protector -o test.ii
ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory
"/usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/c++/4.4
/usr/include/c++/4.4/i486-linux-gnu
/usr/include/c++/4.4/backward
/usr/local/include
/usr/lib/gcc/i486-linux-gnu/4.4.3/include
/usr/lib/gcc/i486-linux-gnu/4.4.3/include-fixed
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-mtune=generic' '-march=i486'
/usr/lib/gcc/i486-linux-gnu/4.4.3/cc1plus -fpreprocessed test.ii -quiet
-dumpbase test.cc -mtune=generic -march=i486 -auxbase test -version
-fstack-protector -o test.s
GNU C++ (Ubuntu 4.4.3-4ubuntu5) version 4.4.3 (i486-linux-gnu)
compiled by GNU C version 4.4.3, GMP version 4.3.2, MPFR version
2.4.2-p1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++ (Ubuntu 4.4.3-4ubuntu5) version 4.4.3 (i486-linux-gnu)
compiled by GNU C version 4.4.3, GMP version 4.3.2, MPFR version
2.4.2-p1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 35224f2c24023afb0a5be7befe8d5f3f
test.cc:6: error: __restrict__ qualifiers cannot be applied to unsigned
char
--
Summary: __restrict__ inconsistent in presence of typedefs
Product: gcc
Version: 4.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: evan at chromium dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45697
