C++

[Oskar1121]

Ok, I have this function:

std::string Item::getWeightDescription(const Item* item/* = NULL*/, double weight, bool stackable, uint32_t count/* = 1*/)
{
    if(item && weight > 0)
        {
        std::stringstream s;
        if(stackable && count > 1)
                s << "They weigh " << std::fixed << std::setprecision(2) << weight << " oz.";
        else
                s << "It weighs " << std::fixed << std::setprecision(2) << weight << " oz.";

        return s.str();
        }
    return "";
}

In item.cpp and this in item.h:

static std::string getWeightDescription(const Item* item = NULL, double weight, bool stackable, uint32_t count = 1);
std::string getWeightDescription() const {return getWeightDescription(this, getWeight(), items[id].stackable, count);}

I compile my engine, it displays an error:

1520 C:\Users\Oskar\Desktop\0.3.6pl1.r83\item.cpp default argument missing for parameter 2 of `static std::string Item::getWeightDescription(const Item*, double, bool, uint32_t)'

 

[Doggynub]

You obviously need to put all default param at last of the function arguments

[cpp]
static std::string getWeightDescription(double weight, bool stackable, const Item* item = NULL, uint32_t count = 1); [/cpp]

 

[Oskar1121]

Now is:

  [Linker error] undefined reference to `Item::getWeightDescription(double, bool, unsigned int, Item const*)'

static std::string getWeightDescription(double weight, bool stackable, const Item* item = NULL, uint32_t count = 1);
std::string getWeightDescription() const {return getWeightDescription(getWeight(), items[id].stackable, this, count);}

std::string Item::getWeightDescription(double weight, bool stackable, const Item* item/* = NULL*/, uint32_t count/* = 1*/)