Transpose a non-square matrix in C withou buffer matrix

[Brok]

I have something like:

for(j=0; j<columnsNumber; j++) {
   for(i=0; i<rowsNumber; i++) {
    bufferMatix[j][i] = sourceMatrix[i][j];
   }

But it works only when rowsNumber=colsNumber

 

 

Thanks!

[Josh]

I think that will cause problems because you are copying things that were previously copied. You will need a temporary buffer.

[Andrr]

You can just swap matrix elements is memory like it's demonstrated here.

[Josh]

You still have a temporary variable, you're just using a lot of them in a function instead of one big buffer.

 

Just for fun, there IS a way to switch to variables without declaring a third.

 

int a = 3;

int b = 7;

a += b;

b = a - b;

a -= b;

 

I don't recommend doing that because you could create a number that exceeds the range of your data type.

[Brok]

Andrr, Josh

Thank you! You're realy help me!