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Index › Programming Questions & Help › Syntax Questions › what is a breakpoint and how do i set one
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what is a breakpoint and how do i set one? (Read 852 times)
cr_davis
what is a breakpoint and how do i set one?
Mar 29th, 2010, 10:23pm  
I'm having memory issues with my program. the error line is as follows:

java(3353,0xb11ba000) malloc: *** mmap(size=536875008) failed (error code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug

so how can i set this breakpoint in malloc_error_break??????? what does this mean?
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PhiLho 
Re: what is a breakpoint and how do i set one?
Reply #1 - Mar 30th, 2010, 2:52am  
As I wrote earlier, it seems to be an issue with a native library, either in Java itself or in a library you use.
The advice in the message is quite useless, particularly if you don't have the source code of the native library.

To answer your question, a breakpoint is a mark one puts in the source code, in an IDE like Eclipse or NetBeans (or Visual Studio in the Windows world for C/C++ coding, or XCode in the Mac world).
When the IDE runs the code in debug mode, it makes it stop on the breakpoint, and then one can examine variable contents, step in the code, etc.
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