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Debug my own class - How to display a variable/function value [message #1769184]

Thu, 27 July 2017 06:34

Eclipse User

If I have a class ...

class X
{
public:
  int val;
};

int main(int argc, char** argv)
{
  X xx;
  xx.val = 20;
  ...

And, when I debug my code, I want to see what the value of "xx", what I want to actually display is "xx.val"

Is it possible to define how to display the value of my own class?

In my case I have a "std::string ToString()" function and I would like that value to be displayed.
Is something like that possible?

Thanks

S.

Re: Debug my own class - How to display a variable/function value [message #1769186 is a reply to message #1769184]

Thu, 27 July 2017 07:11

Eclipse User

The handling of this type of display is delegated to GDB. In this case you want to install a pretty printer for the X type.

See https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html#Pretty-Printing

Re: Debug my own class - How to display a variable/function value [message #1769198 is a reply to message #1769186]

Thu, 27 July 2017 10:10

Eclipse User

Jonah Graham wrote on Thu, 27 July 2017 11:11

The handling of this type of display is delegated to GDB. In this case you want to install a pretty printer for the X type.

See https://sourceware.org/gdb/onlinedocs/gdb/Pretty-Printing.html#Pretty-Printing

Perfect, thanks "Pretty print" was the part I was missing.

Thanks

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