Not being able to initialize condition variable in a struct

Question

Why am I not able to initialize a condition variable in a struct? I want each node to have a condition variable so I can wait and signal it, and when I add the initialization code it throws this error: expected ‘:’, ‘,’, ‘;’, ‘}’ or ‘attribute’ before ‘=’ token make: * [trie.o] Error 1

I tried doing the initializition when needed somewhere(not in the struct)and I still get an error, I have included pthreads.h

struct trie_node {

  pthread_cond_t condition=PTHREAD_COND_INITIALIZER;
};

Answer 1

You can't use PTHREAD_COND_INITIALIZER when initializing a structure member.

You have to use pthread_cond_init after you create an instance of the structure.

Actually, you can't initialize structure members at all in the structure definition, it's not just this one.