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Old 09-04-2011, 05:08 PM   #1
tz_uw
LQ Newbie
 
Registered: Sep 2011
Posts: 7

Rep: Reputation: Disabled
missing braces around initializer


Code:
#include <stdio.h>
typedef struct
{
	int a[2];
}twoint;
typedef struct
{
	twoint a;
	twoint b;
}foo;
Code:
/*main code with compile error: missing braces around initializer*/
int main()
{
	foo a =
	{
		{1,2},
		{3,4}
	};
}
Code:
/*FIX: no compile error*/
int main()
{
	foo a =
	{
		{{1,2}},
		{{3,4}}
	};
}
Does this fix looks correct?
Why is it necessary to put {} around the twoint struct?
 
Old 09-04-2011, 09:44 PM   #2
tbrand
Member
 
Registered: Jul 2006
Location: Toronto, Canada
Distribution: gentoo
Posts: 33

Rep: Reputation: 17
I cut and pasted you code and I get no compiler error on neither gcc 4.4.3 or gcc 4.4.4. What compiler are you running?
 
Old 09-04-2011, 09:51 PM   #3
tz_uw
LQ Newbie
 
Registered: Sep 2011
Posts: 7

Original Poster
Rep: Reputation: Disabled
I'm using gcc 4.3.4 with warning enabled.
Thanks
 
Old 09-04-2011, 10:07 PM   #4
tbrand
Member
 
Registered: Jul 2006
Location: Toronto, Canada
Distribution: gentoo
Posts: 33

Rep: Reputation: 17
I now enabled -Wmissing-braces and am getting the same warning but it makes sense:

Code:
foo a =
  {           /* initialize foo a */
    {         /* initialize twopoint a */
      {1,2}   /* initialize array int a */
    }
    {         /* initialize twopoint b */
      {3,4}   /* initialize array int a */ 
    }
  }
 
Old 09-05-2011, 01:14 AM   #5
tz_uw
LQ Newbie
 
Registered: Sep 2011
Posts: 7

Original Poster
Rep: Reputation: Disabled
Many thanks
 
  


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