Can XCode break when data ata memory location changes

Visual Studio has always been able to do this - if you know a mem loc then you can set conditional breakp开发者_JAVA百科oints when that mem loc's value changes to a particular value or changes at all. Is that what Symbolic breakpoints are for in XCode? If so, I cannot see how to do this.

Thx, Tom

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If you're comfortable with gdb, this question & answer should be more than enough to help you out. If not, you might want to get comfortable with it soon...