Hello! 

It seems that C++ breakpoints do not work in NB 7.1 RC1, at least on Windows. 
IDE stops the program and shows current line when error like division by zero occurs, but breakpoints do not have any effect. I tried several different projects with the same result.

NetBeans 7.0.1 works perfectly so I think this is not a problem with my GDB.

GCC version: 4.6.1 (MinGW)
GDB version: 7.3.1 (MinGW)


GDB console dump:

=thread-group-added,id="i1"
~"GNU gdb (GDB) 7.3.1\n"
~"Copyright (C) 2011 Free Software Foundation, Inc.\n"
~"License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\nThis is free software: you are free to change and redistribute it.\nThere is NO WARRANTY, to the extent permitted by law.  Type \"show copying\"\nand \"show warranty\" for details.\n"
~"This GDB was configured as \"mingw32\".\nFor bug reporting instructions, please see:\n"
~"<http://www.gnu.org/software/gdb/bugs/>.\n"
&"C:\\\\Users\\\\Administrator/.gdbinit: No such file or directory.\n"
(gdb) 
2-list-features
3-gdb-set print repeat 0
4-gdb-set backtrace limit 1024
5-gdb-set print elements 0
6set new-console
7-file-symbol-file "D:/V3DSoft/Programs/Learn/NB71Test/dist/Debug/MinGW-Windows/nb71test"
8-file-exec-and-symbols  "D:\\V3DSoft\\Programs\\Learn\\NB71Test\\dist\\Debug\\MinGW-Windows\\nb71test"
2^done,features=["frozen-varobjs","pending-breakpoints","thread-info","data-read-memory-bytes"]
(gdb) 
3^done
(gdb) 
4^done
(gdb) 
5^done
(gdb) 
&"set new-console\n"
6^done
(gdb) 
7^done
(gdb) 
8^done
(gdb) 
9-file-list-exec-source-file
10cd D:\V3DSoft\Programs\Learn\NB71Test
11-exec-arguments 
12set environment Path=C:\Dev\MinGW\MSys\1.0\bin;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\PROGRA~1\MATROX~1\System64;C:\PROGRA~1\MATROX~1\System32;C:\Dev\gtkmm\bin;C:\Dev\MiKTeX 2.8\miktex\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Dev\MinGW\bin;C:\Dev\MinGW\MSys\1.0\bin;C:\Dev\Pixie\bin;C:\Program Files (x86)\GtkSharp\2.12\bin;C:\Program Files (x86)\Subversion\bin;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Dev\Render\Pixie\bin;C:\Dev\Render\LuxRender;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Dev\Render\Aqsis\bin
13-break-insert -f "/D/V3DSoft/Programs/Learn/NB71Test/main.cpp:19"
14-var-create - @ WstrToStr(path)
15-var-update --all-values * 
16-var-create - @ WstrToStr(name)
17-var-update --all-values * 
18-var-create - @ currDecorName.toAscii().data()
19-var-update --all-values * 
9^done,line="8",file="main.cpp",fullname="d:\\v3dsoft\\programs\\learn\\nb71test\\main.cpp",macro-info="0"
(gdb) 
20-break-insert -t _start
&"cd D:\\V3DSoft\\Programs\\Learn\\NB71Test\n"
~"Working directory D:\\V3DSoft\\Programs\\Learn\\NB71Test.\n"
10^done
(gdb) 
11^done
(gdb) 
&"set environment Path=C:\\Dev\\MinGW\\MSys\\1.0\\bin;C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common;C:\\Program Files\\Common Files\\Microsoft Shared\\Windows Live;C:\\PROGRA~1\\MATROX~1\\System64;C:\\PROGRA~1\\MATROX~1\\System32;C:\\Dev\\gtkmm\\bin;C:\\Dev\\MiKTeX 2.8\\miktex\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Dev\\MinGW\\bin;C:\\Dev\\MinGW\\MSys\\1.0\\bin;C:\\Dev\\Pixie\\bin;C:\\Program Files (x86)\\GtkSharp\\2.12\\bin;C:\\Program Files (x86)\\Subversion\\bin;C:\\Program Files (x86)\\QuickTime\\QTSystem\\;C:\\Dev\\Render\\Pixie\\bin;C:\\Dev\\Render\\LuxRender;C:\\Program Files\\Common Files\\Microsoft Shared\\Windows Live;C:\\Dev\\Render\\Aqsis\\bin\n"
12^done
(gdb) 
&"No source file named /D/V3DSoft/Programs/Learn/NB71Test/main.cpp.\n"
13^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="<PENDING>",pending="/D/V3DSoft/Programs/Learn/NB71Test/main.cpp:19",times="0",original-location="/D/V3DSoft/Programs/Learn/NB71Test/main.cpp:19"}
(gdb) 
14^error,msg="-var-create: unable to create variable object"
(gdb) 
15^done,changelist=[]
(gdb) 
16^error,msg="-var-create: unable to create variable object"
(gdb) 
17^done,changelist=[]
(gdb) 
18^error,msg="-var-create: unable to create variable object"
(gdb) 
19^done,changelist=[]
(gdb) 
20^error,msg="Function \"_start\" not defined."
(gdb) 
21-break-insert -t main
21^done,bkpt={number="2",type="breakpoint",disp="del",enabled="y",addr="0x00401395",func="main(int, char**)",file="main.cpp",fullname="d:\\v3dsoft\\programs\\learn\\nb71test\\main.cpp",line="17",times="0",original-location="main"}
(gdb) 
22-exec-run
=thread-group-started,id="i1",pid="5036"
=thread-created,id="1",group-id="i1"
~"[New Thread 5036.0x40c]\n"
22^running
*running,thread-id="all"
(gdb) 
=library-loaded,id="C:\\Windows\\system32\\ntdll.dll",target-name="C:\\Windows\\system32\\ntdll.dll",host-name="C:\\Windows\\system32\\ntdll.dll",symbols-loaded="0",thread-group="i1"
=library-loaded,id="C:\\Windows\\syswow64\\kernel32.dll",target-name="C:\\Windows\\syswow64\\kernel32.dll",host-name="C:\\Windows\\syswow64\\kernel32.dll",symbols-loaded="0",thread-group="i1"
=library-loaded,id="C:\\Windows\\syswow64\\KernelBase.dll",target-name="C:\\Windows\\syswow64\\KernelBase.dll",host-name="C:\\Windows\\syswow64\\KernelBase.dll",symbols-loaded="0",thread-group="i1"
=library-loaded,id="C:\\Windows\\syswow64\\msvcrt.dll",target-name="C:\\Windows\\syswow64\\msvcrt.dll",host-name="C:\\Windows\\syswow64\\msvcrt.dll",symbols-loaded="0",thread-group="i1"
=library-loaded,id="C:\\Dev\\MinGW\\bin\\libgcc_s_dw2-1.dll",target-name="C:\\Dev\\MinGW\\bin\\libgcc_s_dw2-1.dll",host-name="C:\\Dev\\MinGW\\bin\\libgcc_s_dw2-1.dll",symbols-loaded="0",thread-group="i1"
=library-loaded,id="C:\\Dev\\MinGW\\bin\\libstdc++-6.dll",target-name="C:\\Dev\\MinGW\\bin\\libstdc++-6.dll",host-name="C:\\Dev\\MinGW\\bin\\libstdc++-6.dll",symbols-loaded="0",thread-group="i1"
*stopped,reason="breakpoint-hit",disp="del",bkptno="2",frame={addr="0x00401395",func="main",args=[{name="argc",value="1"},{name="argv",value="0x741778"}],file="main.cpp",fullname="d:\\v3dsoft\\programs\\learn\\nb71test\\main.cpp",line="17"},thread-id="1",stopped-threads="all"
(gdb) 
23info threads
&"info threads\n"
~"  Id   Target Id         Frame \n"
~"* 1    Thread 5036.0x40c main (argc=1, argv=0x741778) at main.cpp:17\n"
23^done
(gdb) 
No answer for: 22-exec-run
24-exec-continue
24^running
*running,thread-id="all"
(gdb)