I'm attempting to compile the code below, but the compiler gives the error
Struct.h:38:9: error: ‘priority_queue’ in namespace ‘std’ does not name a type
Several searches failed to reveal an answer so I'm hoping you guys can help out. The code was partially based on the sample code given at the c++ reference site.
struct aimedShot;
union moveFunc;
struct timeCommand;
struct aimedShot
{
void (*move) (Dot*, SDL_Event&, double x, double y);
double x;
double y;
};
//Holds the kind of function used
union moveFunc
{
void (*notAimed) (Dot*);
aimedShot aimed;
};
//Dot to be operated on and the appropriate operator with time
struct timeCommand
{
Dot* target;
moveFunc command;
int time;
bool type; //True indicates aimed (integer inputs), False indicates unaimed
};
class CompareCommand
{
public:
bool operator()(timeCommand& c1, timeCommand& c2) //Return true if c1 comes first
{
return (c1.time < c2.time);
}
};
typedef std::priority_queue< timeCommand, std::vector<timeCommand>, CompareCommand> commandTimeline;
为了能够使用std::priority_queue<>
类模板,您需要#include <queue>
标准头。
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