Re: [Dev-C++] C vs C++

[Jason H. <jas...@bt...>]

The reason you get that problem is because you now have to cast a void
pointer into the type you are using, and the old C style dynamic allocation
functions will always return a void pointer as they have no way of
determining the type of the value returned. i.e.

char *currentObjName = static_cast<char*>(calloc(100, sizeof(char)));

or if you are using C only you can use the old style cast: (char*)

for C++... yes you can use strings, but you can also use the new and delete
(or delete[]) operators. Strings are better for simplicity of use.

Jason.

----- Original Message -----
From: "Gregor Peter" <pe...@in...>
To: <dev...@li...>
Sent: Wednesday, November 07, 2001 5:21 AM
Subject: [Dev-C++] C vs C++


> My Compiler complains about the following codelines
>
> lineNo: c-code
>      59: char *currentObjName = calloc( 100, sizeof( char ) );
>      60: char *token1         = calloc(  25, sizeof( char ) );
>      63: char *mltext, *ptext, *str;
>      64: mltext = malloc( 10*sizeof(char));
>     318: mltext = realloc( mltext, (strlen(mltext)+yyleng)*sizeof(char) );
>     329: mltext = realloc( mltext, (strlen(mltext)+1)*sizeof(char) );
>
> The compilers errmsg is:
>
>     SCANNER.LEX:'lineNo': ANSI C++ forbids implicit conversion from
>     `void *' in initialization
>
>
> Can tell me someone how to rewrite this ANSI C++ compatible?
>
> THANX
> Gregor (pe...@in...)
>
>
>
>
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