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Groups > comp.lang.c > #18144

Re: struct looses initialization when passing to a function

From nick_keighley_nospam@hotmail.com
Newsgroups comp.lang.c
Subject Re: struct looses initialization when passing to a function
Date 2012-03-03 06:29 -0800
Organization http://groups.google.com
Message-ID <23209526.614.1330784965988.JavaMail.geo-discussion-forums@vblb5> (permalink)
References <29955299.255.1330701473733.JavaMail.geo-discussion-forums@pbij6>

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On Friday, March 2, 2012 3:17:53 PM UTC, ArifulHossain tuhin wrote:

> i have a stuct like following:
> typedef struct{
> char static[10];
> int a;
> int b;
> }my_type;
> 
> now i've initialized it like following:
> 
> my_type * s;
> 
> s = (my_type *)malloc(sizeof(my_type));
> memmove(a->static,buf,len);

like Kaz I don't believe you compiled this. What is 'a'? and buf and len?

> s->a = 1;
> s->b = 2;
> myfunc((void *)&s);
> 
> 
> void myfun(void ** data);
> 
> inside myfun i retain initialization for the static[10] field. but i loose other initializations of field a and field b.

post a short, complete, compliable program that illustrates your problem

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Thread

struct looses initialization when passing to a function ArifulHossain tuhin <etothepowerpi@gmail.com> - 2012-03-02 07:17 -0800
  Re: struct looses initialization when passing to a function Ian Collins <ian-news@hotmail.com> - 2012-03-03 11:59 +1300
    Re: struct looses initialization when passing to a function Ian Collins <ian-news@hotmail.com> - 2012-03-03 12:01 +1300
  Re: struct looses initialization when passing to a function Kaz Kylheku <kaz@kylheku.com> - 2012-03-02 23:01 +0000
  Re: struct looses initialization when passing to a function nick_keighley_nospam@hotmail.com - 2012-03-03 06:29 -0800
  Re: struct looses initialization when passing to a function Barry Schwarz <schwarz45@yahoo.com> - 2012-03-03 07:29 -0800
    Re: struct looses initialization when passing to a function Keith Thompson <kst-u@mib.org> - 2012-03-03 12:55 -0800
  Re: struct looses initialization when passing to a function Shao Miller <sha0.miller@gmail.com> - 2012-03-03 14:29 -0500

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