continue is a keyword to skip the rest of a for/while-loop and continue to perform the next.
for (/* something #1 */ ) { //This line is always executed if (/* something #2 */) continue; //This line is only executed if 'something #2' is false }
Consider to never use continue [1].
Example: CountDeadEnds
#include <vector> //From http://www.richelbilderbeek.nl/CppCountDeadEnds.htm const int CountDeadEnds(const std::vector<std::vector<int> >& maze) { const int size = static_cast<int>(maze.size()); int nDeadEnds = 0; for (int y=1; y!=size-1; ++y) { for (int x=1; x!=size-1; ++x) { if (maze[y][x] != 0) continue; //Continue if here is a wall const int nWalls = (maze[y+1][x ] == 1 ? 1 : 0) + (maze[y-1][x ] == 1 ? 1 : 0) + (maze[y ][x+1] == 1 ? 1 : 0) + (maze[y ][x-1] == 1 ? 1 : 0); if (nWalls == 3) ++nDeadEnds; } } return nDeadEnds; }
- Joint Strike Fighter Air Vehicle C++ Coding Standards for the System Development and Demonstration Program. Document Number 2RDU00001 Rev C. December 2005. AV Rule 190 (MISRA Rule 57): 'The continue statement shall not be used.'