Looking for a method to evaluate all bool values within a "column" of a structur

Projects Programming
1

I am using a structure to maintain variables for a collection of objects, where some of these attributes are bool variables that are used to store status flags that get set throughout the code.

Thinking of the structure as a table, at various points in the code, I need to know if any row has a true in a given column. I've done this with a loop, but I'm wondering if there is a more elegant method to achieve this, like the Java isAllTrue method.

Struct shown here:

struct toolVariables
//
// Structured array for tracking all tool attributes
{ 
    char* toolName;                  // name of the tool
    int sensorBaseline;              // baseline value for tool current sensor
    int toolDelta;                   // threshold value for current sensor
    int numberReadings;              // numer of readings taken from the sensor each cycle
    int sensorAverage;               // smoothed average of sensor readings this cycle
    bool toolOverrideSet;            // semaphore to track if tool override is activated
    bool gateActive;                 // semaphore to track if gate is active
    bool gateCallRequest;            // semaphore to track status of the blast gate call request
    bool gateSpindownStatus;         // semaphore to track if tool gate is in spindown
    int gateSpindownDelay;           // number of miliseconds to keep running after tool stops
    unsigned long gateSpindownEnd;   // millisecond counter time when spindown ends
    int sensorPin;                   // analog pin for current sensor
    int gatePin;                     // digital pin controlling blast gate
    int overridePin;                 // digital pin for manual override switch
}

    toolArray[] =
    //
    // Listing of each tool and its associated attributes
    //
    // Tools should be ordered so the most common use tools are at the top to ensure 
    // the most efficient operation of the dustCollection function.
    {
        {"future", 585, 9999, 10, 0, false, false, false, false, 10000, 0, A0, 48, 27},
        {"Shop Cleanup", 600, 9999, 10, 0, false, false, false, false, 10000, 0, A4, 47, 26},
        {"Chop Saw", 600, 50, 10, 0, false, false, false, false, 30000, 0, A8, 44, 25},
        {"Shaper/Wide Belt", 600, 9999, 10, 0, false, false, false, false, 6000, 0, A12, 45, 24},
        {"Bandsaw", 320, 9999, 10, 0, false, false, false, false, 6000, 0, A1, 42, 23},
        {"Planer", 320, 75, 10, 0, false, false, false, false, 10000, 0, A5, 46, 22},
        {"Jointer", 320, 75, 10, 0, false, false, false, false, 10000, 0, A9, 49, 31},
        {"Belt Sander", 320, 9999, 10, 0, false, false, false, false, 5000, 0, A13, 43, 28},
        {"Work Bench", 600, 100, 10, 0, false, false, false, false, 5000, 0, A14, 40, 29},
        {"Table Saw", 600, 100, 10, 0, false, false, false, false, 20000, 0, A10, 41, 30},
        {"HighBay Cleanup", 600, 100, 10, 0, false, false, false, false, 5000, 0, A6, 38, 34},
        {"HighBay Overhead", 320, 9999, 10, 0, false, false, false, false, 5000, 0, A2, 39, 36}
    };

Thanks,

Chuck

2

There's no built-in that I know of, just use a for loop. Encapsulate it in a function if you like.

If you really wanted to, you could make accessor functions which could keep a running count, but I wouldn't bother unless you had orders of magnitude more rows.

3

declaring a bool in a struct reserves 8 bits, because of the address, but you can set your booleans up in a bit field in a single byte with the width of 1, up to 8 of them of course, then evaluate that byte to be > 0.

4

I can guarantee that Java's isAllTrue method uses a loop in it's function. Just write a function for this.