Sorting array

#include <stdlib.h>
#include <stdio.h>

#define DEBUG 0

void sortArray( int *a, int length );
void printArray( int *a, int length );
void arraySmallestValue( int value, int index );

int main( int argc, char **argv )
{
    int a[5] = {3, 5, 1, 4, 2};

    sortArray( a, 5 );

    return 0;
}

void sortArray( int *a, int length )
{
    int i = 0;
    int smallest = 0;
    int index = 0;
    int replaceInd = 0;
    int replaceValue = 0;

    printArray( a, length ); // Starting array

    if ( 0 < length )
    {
        smallest = a[ 0 ];
    }

    arraySmallestValue( smallest, replaceInd );

    while ( ( length - 1 ) != replaceInd )
    {
        for ( i = replaceInd; i < length; i++ )
        {
            if ( a[ i ] < smallest )
            {
                smallest = a[ i ];
                index = i;
            }
        }

        if ( a[ replaceInd ] != smallest )
        {
            replaceValue = a[ replaceInd ];
            a[ replaceInd ] = smallest;
            a[ index ] = replaceValue;
        }

        replaceInd++;

        smallest = a[ replaceInd ];

        // DEBUGing part
        printArray( a, length );
        arraySmallestValue( smallest, replaceInd );
    }
}

void printArray( int *a, int length )
{
    int i = 0;

    printf( "Here is array:\n" );

    for ( i = 0; i < length; i++ )
    {
        printf( "%d\t=>\t%d\n", i, a[ i ] );
    }
}

void arraySmallestValue( int value, int index )
{
    printf( "We start with number %d and it is on index %d\n\n", value, index );
}