V756. The 'X' counter is not used inside a nested loop. Consider inspecting usage of 'Y' counter.


The analyzer detected a possible error in two or more nested 'for' loops, when the counter of one of the loops is not used because of a typo.

Consider the following synthetic example of incorrect code:

for (int i = 0; i < N; i++)
  for (int j = 0; j < M; j++)
      sum += matrix[i][i];

The programmer wanted to process all the elements of a matrix and find their sum but made a mistake and wrote variable 'i' instead of 'j' when indexing into the matrix.

Fixed version:

for (int i = 0; i < N; i++)
  for (int j = 0; j < M; j++)
      sum += matrix[i][j];

Unlike diagnostics V533, and V534, this one deals with indexing errors only in loop bodies.

You can look at examples of errors detected by the V756 diagnostic.


Bugs Found

Checked Projects
343
Collected Errors
12 850