can you please hellp ( structure related)

[Nobody/Anonymous]

THIS IS THE PROGRAM TO FIND THE MAX AND MIN USING STRUCTURES, CAN YOU EXPLAIN WHAT TYPEDEF STRUCT MEANS AND WHAT OTHER DECLARATION WE COULD DO FOR A STRUCTURE , PLUS THIS CODE {  minmaxst out;
}AND {nmaxst mmstr = findmm(argc-1, x)}

#include <iostream.h>
#include <stdlib.h>
#include <math.h>

typedef struct {
    double *array;
    int numberPoints;
    double maxValue;
    double minValue;
} minmaxst;

minmaxst findmm(int numpoints, double *inArray)
{
    minmaxst out;
    out.array = new double[numpoints];
    out.maxValue = inArray[0];
    out.minValue = inArray[0];
    out.numberPoints = numpoints;
    for (int i = 0; i < numpoints; i++)
    {
        out.array[i] = inArray[i]; //load up array
        if (inArray[i] < out.minValue)
                out.minValue = inArray[i];
        if (inArray[i] > out.maxValue)
                out.maxValue = inArray[i];
    }
    return out;
}

int main(int argc, char *argv[])
{
    if (argc < 3)
        return 0;
    double *x = new double[argc - 1];
    for (int i = 1; i < argc; i++)
        x[i-1] = atof(argv[i]);
    minmaxst mmstr = findmm(argc-1, x);
    cout << mmstr.maxValue << "  " << mmstr.minValue << endl;
    delete x;
    delete mmstr.array;
    system ("pause");
    return 0;
}

[Nobody/Anonymous]

it looks like that program simply sorts the contents of an array, and minmaxst is a buffer, the findmm is the sorting subroutine and the for loop is the sort.

[Nobody/Anonymous]

oh, forgot to answer your question, typedef structure tells the compiler to declare a structure named minmaxst, minmaxst out means to create a minmaxst variable named out,  minmaxst mmstr = findmm(argc-1, x) means run the subroutine findmm, with the variables argc - 1, and x, then return the minmaxst

[Nobody/Anonymous]

thank you very very very much, that really helped me a lot, and thanks for the fast reply