Change the actual swapping logic in the scope of the “if” construct, from array

Question

Change the actual swapping logic in the scope of the “if” construct, from array references to pointers. This also includes the “temp” identifier. Watch your data typing.

Do not modify the array “m” declaration.The resulting values in the array “m” will be in descending order. </hint> take the code, compile and link it, run and verify the data in “m” is descending. Then modify one line of code (LOC) to use pointers, comment out the original for reference, compile/link and test. Then change another LOC until all swapping is using pointer identifiers. <hint>

main()
{
char wait;
short m[]={3,5,7,2,5,1,2,2,  
6,5,7,2,4,1,3,3,
7,7,3,2,5,7,1,9};
unsigned char temp, i, j;
unsigned char numElements = sizeof(m)/sizeof(m[0])-1;

for (i=0; i<=numElements-1; i++) // change < to <=
{
for(j=i+1; j<=numElements; j++) // change < to <=
{
if ( m[i] <= m[j])
{
temp = m[i]; //was m[j] should be m[i]
m[i] = m[j];
m[j] = temp;
}
}
}
}

Explanation / Answer

main()
{
char wait;
short m[]={3,5,7,2,5,1,2,2,  
6,5,7,2,4,1,3,3,
7,7,3,2,5,7,1,9};
unsigned char temp, i, j;
unsigned char numElements = sizeof(m)/sizeof(m[0])-1;

for (i=0; i<=numElements-1; i++) // change < to <=
{
for(j=i+1; j<=numElements; j++) // change < to <=
{
if ( *(m+i) <= *(m+j))
{
temp = *(m+i); //was m[j] should be m[i]
*(m+i) = *(m+j);
*(m+j) = temp;
}
}
}
}

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