Solves issue 12392

7 years ago · d71812425a
parent c7cf8fb35c
commit d71812425a
1 changed files with 5 additions and 0 deletions
--- a/modules/core/src/rand.cpp
+++ b/modules/core/src/rand.cpp
@ -584,6 +584,11 @@ void RNG::fill( InputOutputArray _mat, int disttype,
                }
                ip[j][1] = cvCeil(a);
                int idiff = ip[j][0] = cvFloor(b) - ip[j][1] - 1;
+                if (idiff < 0)
+                {
+                    idiff = 0;
+                    ip[j][0] = 0;
+                }
                double diff = b - a;

                fast_int_mode = fast_int_mode && diff <= 4294967296. && (idiff & (idiff+1)) == 0;