Thread: Problem with _mangled_main. kinda urgent :\

Hi there.

I'm with a problem. I'm programming an allegro simulation and I have made a typedef struct bola_st and g is a pointer to this struct.

Code:

 
    typedef struct bola_st{
        float x,y,z,t;
        bola_st *next;
        } bola_st;

    bola_st *g=malloc(sizeof(bola_st)*bolasps*sqrt(h/4.9));

and when I'm compiling the following error message appears:

cannot convert `_mangled_main(int, char**)::bola_st*' to `bola_st*' for argument `1' to `double calculo(bola_st*, float, float, int, float)'

in this line

Code:

 calculo(g,TEMPO_TOTAL,b,h,bolasps);

(calculo is a function)

I don't know why this is appearing...I would be pretty thankful if anyone help me

I've made the typedef in and out of the main :\

the same problem appears when I call the function "desenhar" that requires the pointer g too

the header of the .c file is this

Code:

typedef struct bola_st{
        float x,y,z,t;
        struct bola *next;
        } bola_st;

double calculo(struct bola_st *, float, float ,int, float);
void desenhar(struct bola_st*, float ,BITMAP *, BITMAP *, BITMAP *, float );

and here I call the functions..

Code:

while(var_tempo>0){
         calculo(g,TEMPO_TOTAL,b,h,bolasps); var_tempo--;
         }
         desenhar(g, h, pistola_lado, bola, bola_preta, bolasps);
    }

and then I start defining the functions

Code:

double calculo(struct bola_st *g, float TEMPO_TOTAL, float h, int b, float bolasps){
(...)
void desenhar(struct bola_st *g, float h, BITMAP *pistola_lado, BITMAP *bola, BITMAP *bola_preta, float bolasps){
(...)

bola_st *g=malloc(sizeof(bola_st)*bolasps*sqrt(h/4.9));

What is this meant to do? You are using floats to allocate memory?

I'm defining the size of the memory to allocate, so I used the function sizeof() and do it n times..this n is a float

actually it is not lol I missed that... I typecasted it now thanks lol