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From Samisa Abeysinghe <sam...@wso2.com>
Subject Re: [Axis2C] Casting away const
Date Thu, 10 Jan 2008 01:18:49 GMT
It looks to me it is a bug. axiom_attribute_get_value should be 
returning a const axis2_char_t.

Samisa...

Alastair FETTES wrote:
>
> Axis2C Developers:
>
> There seems to be a fundamental problem with functions that return 
> values of type axis2_chart_t*.  We have only investigated a couple of 
> them but it appears that const values are being casted away in some 
> instances.  Please view the following example:
>
> <snippet>
> AXIS2_EXTERN
> axis2_char_t*
> axiom_attribute_get_value(
>     axiom_attribute_t * attribute,
>     const axutil_env_t * env)
> {
>     if (attribute->value)
>     {
>         return (axis2_char_t *) 
> axutil_string_get_buffer(attribute->value, env);
>     }
>     return NULL;
> }
> </snippet>
>
> Note that the return value of axiom_attribute_get_value is a NON-const 
> axis2_char_t*.  Note the cast on the return value of function 
> axutil_string_get_buffer.  Here is the declaration of 
> axutil_string_get_buffer.
>
> <snippet>
> AXIS2_EXTERN
> const axis2_char_t*
> axutil_string_get_buffer(
>     const struct axutil_string *string,
>     const axutil_env_t * env);
> </snippet>
>
> Note that the return value is a CONST axis2_char_t*. The const 
> attribute of this pointer is being removed via the cast.
>
> Is this expected functionality?  If not I suggest you research all 
> functions that return axis2_char_t*.
>
> Regards.
>
> Alastair Fettes
>
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