How do you watch a variable in xcode 4?

Question

How do you watch a variable in xcode 4? I'm not sure how to do this.

possible duplicate of [Where is the expression window in Xcode 4?](http://stackoverflow.com/questions/5632477/where-is-the-expression-window-in-xcode-4) Just enter the variable name as expression. — osgx, May 12 '11 at 17:57
same question here http://stackoverflow.com/questions/6500718/does-xcode4-have-a-watch-window — Nabil Sham, Nov 05 '12 at 00:33

score 13 · Answer 1 · answered Mar 08 '13 at 17:17

13

Right click in the local variables window to see the "Watch Expression" menu command. Type the variable name and the variable will be added.

answered Mar 08 '13 at 17:17

jbierling

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Where is this "watch expression" menu? – JobHunter69 Oct 28 '16 at 00:24

score 3 · Answer 2 · answered Feb 20 '18 at 07:01

3

"Watch VariableName" is available in debug area. Just right click on a var and select "Watch var".

answered Feb 20 '18 at 07:01

DareDevil

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Weidian Huang · Answer 3 · 2018-08-31T06:58:53.263

There is 2 ways to watch a variable and break at certain condition.

Edit breakpoints

Control-click a breakpoint indicator to display a command menu and choose Edit Breakpoint to open the breakpoint editor and set conditions, add actions, and so forth, as mentioned in Breakpoints.

Use LLDB command line. For example, below command will watch the value of 'I', and break when I==3.

(lldb) watch set var i Watchpoint created: Watchpoint 1: addr = 0x100001018 size = 4 state = enabled type = w declare @ '/Volumes/data/lldb/svn/ToT/test/functionalities/watchpoint/watchpoint_commands/condition/main.cpp:12' (lldb) watch modify -c 'i==3' (lldb) watch list

This is where you can type LLDB command in Xcode.

How do you watch a variable in xcode 4?

3 Answers3