bool item_is_quivered(const item_def &item);

bool item_is_quivered(const item_def &item)
{
    return (item.link == you.m_quiver->get_fire_item());
}

#include "item_use.h"

bool in_inventory( const item_def &i )

bool in_inventory(const item_def &i)

unsigned char get_invent( int invent_type )

unsigned char get_invent(int invent_type)

            if ( is_valid_item(you.inv[invidx]) )
               describe_item( you.inv[invidx], true );

            if (is_valid_item(you.inv[invidx]))
                describe_item( you.inv[invidx], true );

    {
        if (item_is_quivered(i))
            return (true);

    }

    CMD_CYCLE_QUIVER_BACKWARD,

{CMD_CYCLE_QUIVER_BACKWARD, "CMD_CYCLE_QUIVER_BACKWARD"},

{')', CMD_LIST_WEAPONS},

{')', CMD_CYCLE_QUIVER_BACKWARD},
{'}', CMD_LIST_WEAPONS},

    case CMD_CYCLE_QUIVER_BACKWARD:

        int cur;
        you.m_quiver->get_desired_item(NULL, &cur);
        const int next = get_next_fire_item(cur, +1);

        int dir = (cmd == CMD_CYCLE_QUIVER_FORWARD ? +1 : -1);
        int cur = you.m_quiver->get_fire_item();
        const int next = get_next_fire_item(cur, dir);