How to break when a specific exception type is thrown in GDB?

Question

According to the documentation I can break on specific exception type by using conditional breakpoints. However the syntax for the condition isn\'t very clear to me:

Answer 1

Another approach is to rely on the tinfo argument available when the catch point is triggered, which is a pointer to the object returned by typeid(type).

So say if I want to catch exception std::bad_alloc being thrown, I could just do:

> p &typeid(std::bad_alloc)
> $1 = (__cxxabiv1::__si_class_type_info *) 0x8c6db60 
> catch throw if tinfo == 0x8c6db60