Added tests.

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/exec/bresenham.cpp b/tests/exec/bresenham.cpp
new file mode 100644
index 0000000..c92c13f
--- /dev/null
+++ b/tests/exec/bresenham.cpp
@@ -0,0 +1,26 @@
+#include <iostream>
+
+void plot(int y) {
+  while (y-- > 0) std::cout << " ";
+  std::cout << "X\n";
+}
+
+// suppose 0 <= y2 <= x2 (premier octant)
+void bresenham(int x2, int y2) {
+  int x = 0;
+  int y = 0;
+  int e = 2 * y2 - x2;
+  for (x = 0; x <= x2; x++) {
+    plot (y);
+    if (e < 0)
+      e = e + 2* y2;
+    else {
+      y++;
+      e = e + 2 * (y2 - x2);
+    }
+  }
+}
+
+int main() {
+  bresenham(10, 6);
+}