Do I need to set a breakpoint when the variable reaches a certain value in GDB? For example, a variable takes these values: 1 4 8 10 3 2 9 13 11, and I want to set a breakpoint when this variable reaches 9.
Yes, set a breakpoint with a condition .
break ... if value==9
You can use watchpoints for this.
watch n > 9
... must be interrupted when the logical expression changes n > 9; that is, whenever n goes from less than or equal to 9 to more than 9, or vice versa.
n > 9