[Bug libstdc++/28797] New: Problems with demangling (__cxa_demangle())

["kurkov at gorodok dot net" <gcc-bugzilla@gcc.gnu.org>]

I used a simple program which calls __cxa_demangle function. These mangled
names were demangled wrong:
_Z1fA37_iPS_ -> f(int [37], int (*) [37]), should be: f(int[37], int (*) [37])
_Z1fILi2EEvRAplplT_Li3ELi1E_i -> void f<2>(int (&) [((2) + (3)) + (1)]), should
be: void f<2>(int (&) [((2)+(3))+(1)])
_Z1fM1AKiPKS1_ -> _Z1fM1AKiPKS1_, should be: f(int const A::*, int const A::*
const*)
_Z3absILd1c1f1496f8a44219EEvv -> void abs<(double)[1c1f1496f8a44219]>(), should
be: void abs<3.14159e-173>()
_Z3absILd40092acd9e83e426EEvv -> void abs<(double)[40092acd9e83e426]>(), should
be: void abs<3.1459>()                  
_Z3absILe08042191a6cc56a2fe117becEEvv -> void abs<(long
double)[08042191a6cc56a2fe117bec]>(), should be: void abs<1.234e-2345l>()
_Z3absILe804bfff8000000000000000EEvv -> void abs<(long
double)[804bfff8000000000000000]>(), should be: void abs<-1l>()                 
_Z3absILf4016147bEEvv -> void abs<(float)[4016147b]>(), should be: void
abs<2.345f>()                   
_Z3absILfc1800000EEvv -> void abs<(float)[c1800000]>(), should be: void
abs<-16f>()                     
_Z3fooA30_A_i -> foo(int [30][]), should be: foo(int[30][])
_Z9function1PVKiPViPKiPi -> function1(int const volatile*, int volatile*, int
const*, int*), should be: function1(int volatile const*, int volatile*, int
const*, int*)
_Z9function2PVKiPViPKiRS_RS1_RS3_ -> function2(int const volatile*, int
volatile*, int const*, int const volatile&, int volatile&, int const&), should
be: function2(int volatile const*, int volatile*, int const*, int volatile
const&, int volatile&, int const&)
_Z9function4PVKi -> function4(int const volatile*), should be: function4(int
volatile const*)
_Z9function5PVKi -> function5(int const volatile*), should be: function5(int
volatile const*)
_Z9function6PVKiS0_ -> function6(int const volatile*, int const volatile*),
should be: function6(int volatile const*, int volatile const*)
_Z9functionjj -> functionj(unsigned int), should be functionj(unsigned)
_ZlsRKU3fooU4bart1XS0_ -> operator<<(X bart foo const&, X bart), should be:
operator<<(X const foo bart&, X const foo bart)
_ZN3FooIA4_iE3barE -> Foo<int [4]>::bar, should be: Foo<int[4]>::bar
_Znaj -> operator new[](unsigned int), should be: operator new[](unsigned)
_ZngILi42EEvN1AIXplT_Li2EEE1TE -> void operator-<42>(A<(42) + (2)>::T), should
be: void operator-<42>(A<(42)+(2)>::T)
_ZngILi42EEvN1AIXplT_Li2EEEE -> void operator-<42>(A<(42) + (2)>), should be:
void operator-<42>(A<(42)+(2)>)
_ZNSsC1EPKcRKSaIcE -> std::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string(char const*, std::allocator<char> const&),
should be: std::string::string(char const*, std::allocator<char> const&)
_Znwj -> operator new(unsigned int), should be: operator new(unsigned)
_ZTv0_n16_NSoD0Ev -> virtual thunk to std::basic_ostream<char,
std::char_traits<char> >::~basic_ostream(), should be: virtual thunk to
std::ostream::~ostream()

These issues you can reproduce on Mac OS, IA32 Linux and EM64T Linux

Environment: IA32 and EM64T Linux: Red Hat Enterprise Linux WS release 4
(Nahant Update 3); Release: gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)

Environment: Mac OS
Release: 
gcc -v
Using built-in specs.
Target: i686-apple-darwin8
Configured with: /private/var/tmp/gcc/gcc-5341.obj~1/src/configure
--disable-checking -enable-werror --prefix=/usr --mandir=/share/man
--enable-languages=c,objc,c++,obj-c++
--program-transform-name=/^[cg][^.-]*$/s/$/-4.0/
--with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib
--build=powerpc-apple-darwin8 --with-arch=pentium-m --with-tune=prescott
--program-prefix= --host=i686-apple-darwin8 --target=i686-apple-darwin8
Thread model: posix
gcc version 4.0.1 (Apple Computer, Inc. build 5341)

How-To-Repeat:
Feed those mangled names to __cxa_demangle() function and check the results of
demangling.

This report is very close to Bug#:7986.


-- 
           Summary: Problems with demangling (__cxa_demangle())
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kurkov at gorodok dot net


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28797