Difference between revisions of "Debugging with Code::Blocks"
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Breakpoints do not work in constructors or destructors. They do, however, work in routines <u>called</u> from them. This is a GDB restriction, not a bug. So you could do something like: | Breakpoints do not work in constructors or destructors. They do, however, work in routines <u>called</u> from them. This is a GDB restriction, not a bug. So you could do something like: | ||
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[[Image:DbgWithCBExp.png|Debugging ctor/dtor ]] | [[Image:DbgWithCBExp.png|Debugging ctor/dtor ]] | ||
| − | ...and place a breakpoint in "DebugCtorDtor" at the line "int i = 0; | + | |
| + | ...and place a breakpoint in "DebugCtorDtor" at the line "int i = 0;" . The debugger will break at that line. If you then step the debugger (Menu Debug -> Next Line; or alternatively F7) you'll reach the code in the contructor/destructor (is_initialised = true/false). | ||
Last edited: [[User:MortenMacFly|MortenMacFly]] 02:52, 26 October 2006 (EDT) | Last edited: [[User:MortenMacFly|MortenMacFly]] 02:52, 26 October 2006 (EDT) | ||
Revision as of 15:45, 30 October 2006
Make sure that the project is compiled with the -g compiler option. This ensures that the executable has debug symbols included.
Keep in mind that you may have to re-build your project as up-to-date object files might not be re-compiled with -g otherwise. Please be aware that in compilers other than GCC, this might be a different switch.
Menu => Project => Build Options
Open The Debugger Watches Window
Find the line containing the variable to be watched. Set a breakpoint in a position that will allow you to observe the variable value.
Menu => Debug => Toggle Breakpoint
Run the debugger until the breakpoint is reached. Right click the variable to set a watch in the Watch Window.
Notes:
Breakpoints may also be toggled with a left click in the left editor margin.
Breakpoints do not work in constructors or destructors. They do, however, work in routines called from them. This is a GDB restriction, not a bug. So you could do something like:
...and place a breakpoint in "DebugCtorDtor" at the line "int i = 0;" . The debugger will break at that line. If you then step the debugger (Menu Debug -> Next Line; or alternatively F7) you'll reach the code in the contructor/destructor (is_initialised = true/false).
Last edited: MortenMacFly 02:52, 26 October 2006 (EDT)
