任意类型的 GDB 条件断点，例如 C++ std::string 相等 [英] GDB conditional breakpoint on arbitrary types such as C++ std::string equality

问题描述

是否可以在条件表达式包含任意类类型对象的 GDB 中设置条件断点?

Is it possible to set a conditional breakpoint in GDB where the the condition expression contains objects of arbitrary class types?

我需要在函数中设置断点，条件将检查对象的成员字符串变量是否等于说foo".所以，类似:

I need to set a breakpoint inside a function where the condition will check whether a member string variable of an object equals to say "foo". So, something like:

condition 1 myObject->myStringVar == "foo"

但它不起作用.GDB 是否只允许在原始类型和 char* 类型上设置条件断点?有什么办法可以在非原始类型上设置条件断点?

But it's not working. Does GDB only allow conditional breakpoints on primitive and char* types? Is there any way I could set a conditional breakpoint on non-primitive types?

推荐答案

有什么方法可以在非原始上设置条件断点类型?

Is there any way I could set a conditional breakpoint on non-primitive types?

是的，一种方法是将非原始类型转换为原始类型，在您的情况下转换为 char*，然后使用 strcmp 比较字符串.

Yes, one way to do it is to convert non-primitive type to primitive one, in your case to char*, and use strcmp to compare strings.

condition 1 strcmp(myObject->myStringVar.c_str(),"foo") == 0

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