array_core.c

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/* dynamic arrays core */

#include "fb.h"

size_t fb_hArrayCalcElements
        (
                size_t dimensions,
                const ssize_t *lboundTB,
                const ssize_t *uboundTB
        )
{
        size_t i, elements;

    elements = (uboundTB[0] - lboundTB[0]) + 1;
    for( i = 1; i < dimensions; i++ )
        elements *= (uboundTB[i] - lboundTB[i]) + 1;

    return elements;
}

ssize_t fb_hArrayCalcDiff
        (
                size_t dimensions,
                const ssize_t *lboundTB,
                const ssize_t *uboundTB
        )
{
        size_t i, elements;
        ssize_t diff = 0;

        if( dimensions <= 0 )
                return 0;

    for( i = 0; i < dimensions-1; i++ )
    {
        elements = (uboundTB[i+1] - lboundTB[i+1]) + 1;
        diff = (diff + lboundTB[i]) * elements;
    }

        diff += lboundTB[dimensions-1];

        return -diff;
}