Dear all,
I've had crashes of the debugger in recent times which I think I narrowed down to a reproducable example:
- Create a console application
- Compile the following code:
#include <iostream>
#include <string>
std::string Manipulate(const std::string &str)
{
std::string new_str(str);
unsigned int loc;
loc = new_str.find("World");
if (loc != std::string::npos)
new_str.insert(loc, "to the whole ");
return new_str;
}
int main()
{
std::string s = "Hello World";
std::cout << Manipulate(s) << std::endl;
return 0;
}
- Run the debugger - it will break at that line
- Place the cursor over the new_str variable in this line (having the debugger's option enabled to "Evaluate expressions under the cursor")
-> GDB crashes! (not C::B, only GDB!)
The debugger's debug log is as following:
Command-line: D:\Devel\GCC345\bin\gdb.exe -nx -fullname -quiet -args Debug/huhu.exe
Working dir : C:\Dokumente und Einstellungen\Morten\Desktop\huhu\
> set prompt >>>>>>cb_gdb:
(gdb) >>>>>>cb_gdb:
> show version
GNU gdb 6.3
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "i686-pc-mingw32".
>>>>>>cb_gdb:
> set confirm off
>>>>>>cb_gdb:
> set width 0
>>>>>>cb_gdb:
> set height 0
>>>>>>cb_gdb:
> set breakpoint pending on
>>>>>>cb_gdb:
> set print asm-demangle on
>>>>>>cb_gdb:
> set new-console on
>>>>>>cb_gdb:
> set disassembly-flavor intel
>>>>>>cb_gdb:
> directory C:/DOKUME~1/Morten/Desktop/huhu/
>>>>>>cb_gdb:
> delete breakpoints
>>>>>>cb_gdb:
> break C:/DOKUME~1/Morten/Desktop/huhu/main.cpp:13
Breakpoint 1 at 0x401471: file main.cpp, line 13.
>>>>>>cb_gdb:
> run
Breakpoint 1, Manipulate (str=@0x22ff50) at main.cpp:13
C:/DOKUME~1/Morten/Desktop/huhu/main.cpp:13:243:beg:0x401471
>>>>>>cb_gdb:
> info locals
new_str = (string *) 0x22ff40
loc = 6
>>>>>>cb_gdb:
> info args
str = (const string &) @0x22ff50: {static npos = 4294967295, _M_dataplus = {<allocator<char>> = {<new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x3e3c94 "Hello World"}}
>>>>>>cb_gdb:
> whatis new_str
type = string *
>>>>>>cb_gdb:
> output new_str.c_str()[0]@new_str.size()
With regards, Morten.
Edit: I forgot: C::B Version 1.0 revision 2514 () gcc 3.4.5 Windows/unicode