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From: Thiago Adams <thiago.adams@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: C89 "bug"
Date: Fri, 13 Dec 2024 10:26:06 -0300
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Em 12/13/2024 9:56 AM, Michael S escreveu:
> On Fri, 13 Dec 2024 09:15:58 -0300
> Thiago Adams <thiago.adams@gmail.com> wrote:
> 
>> Does anyone knows how can I convert this code (external declaration)
>> to C89?
>>
>> union U {
>>       int i;
>>       double d;
>> };
>>
>> union U  u = {.d=1.2};
>>
>> The problem is that in C89 only the first member of the union is
>> initialized.
>>
> 
> union U {
>   double d;
>   int i;
> };
> 

unfortunately, this solution does not work if we have two objects.

union U {
        double d;
        int i;
  };

union U u1 = { .d=2.2 };
union U u2 = { .i=1   };