Version:           SVN (using KDE 4.4.5) 
OS:                Linux

In my project I'm using a struct type called AVRational:

typedef struct AVRational{
    int num; ///< numerator
    int den; ///< denominator
} AVRational;

And declare an AVRational:
AVRational i;

If I try to set this struct:
i = (AVRational){1,10};

KDevelop editor doesn't parse this instruction. I think this syntax is correct in c/c++ because the program compiles fine.

Reproducible: Didn't try

Steps to Reproduce:
Create a new C file with this contents:

#include <stdio.h>

typedef struct MyStruct {
  int num;
  int den;
} MyType;

int main() {
  MyType i;
  i = (MyType){1,13};

  printf("%d and %d\n",i.num,i.den);
  
  return 1;
}

And compiles with:
gcc teste.c -o teste -Wall

Or: 
clang teste.c -o teste

Or:
tcc teste.c -o teste

I've used just these three compilers and all them compile fine and don't show any warning messages.