Re: Interface with C codes

[Adam Beneschan <adambeneschan@gmail.com>]

On Friday, October 17, 2014 4:22:15 PM UTC-7, Anh Vo wrote:
> What Ada spec should be for the following C prototype where BOOT_PARAMS is a struct and responding Ada type is
> 
> type Boot_Parameter_Type is
>    record
>       Boot_Dev : Interfaces.C.Strings.Chars_Ptr;
>       -- ...
>    end record;
> 
> pragma Convention (C, Boot_Parameter_Type);
> 
> type Boot_Parameter_Type_Access is access Boot_Parameter_Type;
> pragma Convention (C, Boot_Parameter_Type_Access);

> typedef struct           /* BOOT_PARAMS */
>     {
>     char bootDev [20];  /* boot device code */
>     * ... *
>     } BOOT_PARAMS;
> 
> Note that I can not use Ada 2012 yet.
> 
> char *  bootStringToStruct (char * bootString,  BOOT_PARAMS * pBootParams);
> 
> Anh Vo

I'm confused.  You've defined an Ada record Boot_Parameter_Type that has a pointer in it, and a C struct that does not have a pointer. 

                                -- Adam