Exemplo n.º 1
0
struct SN_env *
SN_create_env(int S_size, int I_size, int B_size)
{
	struct SN_env *z = (struct SN_env *) calloc(1, sizeof(struct SN_env));
	struct SN_env *z2 = z;

	if (!z)
		return z;

	z->p = create_s();
	if (!z->p)
		z = NULL;

	if (z && S_size)
	{
		if ((z->S = (symbol * *) calloc(S_size, sizeof(symbol *))))
		{
			int			i;

			for (i = 0; i < S_size; i++)
			{
				if (!(z->S[i] = create_s()))
				{
					z = NULL;
					break;
				}
			}
			z2->S_size = i;
		}
		else
			z = NULL;
	}

	if (z && I_size)
	{
		z->I = (int *) calloc(I_size, sizeof(int));
		if (z->I)
			z->I_size = I_size;
		else
			z = NULL;
	}

	if (z && B_size)
	{
		z->B = (symbol *) calloc(B_size, sizeof(symbol));
		if (z->B)
			z->B_size = B_size;
		else
			z = NULL;
	}

	if (!z)
		SN_close_env(z2);

	return z;
}
Exemplo n.º 2
0
extern struct SN_env * SN_create_env(int S_size, int I_size, int B_size)
{
    struct SN_env * z = (struct SN_env *) calloc(1, sizeof(struct SN_env));
    if (z == NULL) return NULL;
    z->p = create_s();
    if (z->p == NULL) goto error;
    if (S_size)
    {
        int i;
        z->S = (symbol * *) calloc(S_size, sizeof(symbol *));
        if (z->S == NULL) goto error;

        for (i = 0; i < S_size; i++)
        {
            z->S[i] = create_s();
            if (z->S[i] == NULL) goto error;
        }
    }

    if (I_size)
    {
        z->I = (int *) calloc(I_size, sizeof(int));
        if (z->I == NULL) goto error;
    }

    if (B_size)
    {
        z->B = (unsigned char *) calloc(B_size, sizeof(unsigned char));
        if (z->B == NULL) goto error;
    }

    return z;
error:
    SN_close_env(z, S_size);
    return NULL;
}