🚀 go-pugleaf

In article <DF3Evn.ICt@csc.liv.ac.uk> s5sem@csc.liv.ac.uk writes:

>In article <bbkhx*h8d@yaps.rhein.de>, arno@yaps.rhein.de (Arno Eigenwillig)
> writes:
>> In article <42om0g$qi6@mirv.unsw.edu.au>, Avi  Pilosof writes:
>> 
>> > The one thing I hate about C is that you
>> > cannot initialise a struct using curly braces at any point other
>> > that global scope.
>> 
>> Wrong.
>> 
>> -- __
>> __/// Arno Eigenwillig /\ <arno@yaps.rhein.de> \/  PGP key
>> \XX/   V+49-2225-5870  /\ <Arnooo @ #amigager> \/ available
>
>No, this is correct.  Structures cannot be pre-initialised except as
>global.  Maybe you were thinking of structure definitions ???
>
>-FISH-   ><>
>

No, this is incorrect.  Wrong was right.  :-) :-)


6.5.7 (Constraints) says:

#   The initializer for a structure or union object that
#   has **automatic storage duration** either shall be an      (my emphasis)
#   initializer list as described below, or shall be a single
#   expression that has compatible structure or union type. In
#   the latter case, the initial value of the object is that of
#   the expression.

So the following program is OK.

 --- start of program ---

#include <stdio.h>

struct st{int num;char *s;};

struct st obj0 = {4, "four"};

void func( void )
{
 /* not global scope ! */
 struct st obj1 = {5, "five"};         /* initialiser list */
 struct st obj2 = obj0;                /* compatible structure type */

	printf("%d, %s\n", obj1.num, obj1.s );
	printf("%d, %s\n", obj2.num, obj2.s );
	return;
}

int main(void)
{
  func();
  return 0;
}

 --- end of program ---
 
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