diff --git a/include/armadillo_bits/fn_rande.hpp b/include/armadillo_bits/fn_rande.hpp
index d7c655f4..2e3177d2 100644
--- a/include/armadillo_bits/fn_rande.hpp
+++ b/include/armadillo_bits/fn_rande.hpp
@@ -47,7 +47,7 @@ rande(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
   
   param.get_double_vals(lambda, unused);
   
-  arma_conform_check( (lambda <= double(0)), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
+  arma_conform_check( ((lambda > double(0)) == false), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
   
   obj_type out(n_rows, n_cols, arma_nozeros_indicator());
   
@@ -138,7 +138,7 @@ rande(const distr_param& param = distr_param())
   
   param.get_double_vals(lambda, unused);
   
-  arma_conform_check( (lambda <= double(0)), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
+  arma_conform_check( ((lambda > double(0)) == false), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
   
   double out_val = double(0);
   
@@ -162,7 +162,7 @@ rande(const distr_param& param = distr_param())
   
   param.get_double_vals(lambda, unused);
   
-  arma_conform_check( (lambda <= double(0)), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
+  arma_conform_check( ((lambda > double(0)) == false), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
   
   eT out_val = eT(0);
   
@@ -189,7 +189,7 @@ rande(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
   
   param.get_double_vals(lambda, unused);
   
-  arma_conform_check( (lambda <= double(0)), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
+  arma_conform_check( ((lambda > double(0)) == false), "rande(): incorrect distribution parameters; lambda must be greater than zero" );
   
   cube_type out(n_rows, n_cols, n_slices, arma_nozeros_indicator());
   
diff --git a/include/armadillo_bits/fn_randg.hpp b/include/armadillo_bits/fn_randg.hpp
index bacf51ef..5c1cfc2d 100644
--- a/include/armadillo_bits/fn_randg.hpp
+++ b/include/armadillo_bits/fn_randg.hpp
@@ -47,7 +47,7 @@ randg(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( ((a <= double(0)) || (b <= double(0))), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
+  arma_conform_check( ( ((a > double(0)) == false) || ((b > double(0)) == false) ), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
   
   obj_type out(n_rows, n_cols, arma_nozeros_indicator());
   
@@ -138,7 +138,7 @@ randg(const distr_param& param = distr_param())
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( ((a <= double(0)) || (b <= double(0))), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
+  arma_conform_check( ( ((a > double(0)) == false) || ((b > double(0)) == false) ), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
   
   double out_val = double(0);
   
@@ -162,7 +162,7 @@ randg(const distr_param& param = distr_param())
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( ((a <= double(0)) || (b <= double(0))), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
+  arma_conform_check( ( ((a > double(0)) == false) || ((b > double(0)) == false) ), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
   
   eT out_val = eT(0);
   
@@ -189,7 +189,7 @@ randg(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( ((a <= double(0)) || (b <= double(0))), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
+  arma_conform_check( ( ((a > double(0)) == false) || ((b > double(0)) == false) ), "randg(): incorrect distribution parameters; a and b must be greater than zero" );
   
   cube_type out(n_rows, n_cols, n_slices, arma_nozeros_indicator());
   
diff --git a/include/armadillo_bits/fn_randi.hpp b/include/armadillo_bits/fn_randi.hpp
index 24baf306..0a7e9b70 100644
--- a/include/armadillo_bits/fn_randi.hpp
+++ b/include/armadillo_bits/fn_randi.hpp
@@ -47,7 +47,7 @@ randi(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
   
   param.get_int_vals(a,b);
   
-  arma_conform_check( (a > b), "randi(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a <= b) == false), "randi(): incorrect distribution parameters; a must be less than b" );
   
   obj_type out(n_rows, n_cols, arma_nozeros_indicator());
   
@@ -142,7 +142,7 @@ randi(const distr_param& param)
   
   param.get_int_vals(a,b);
   
-  arma_conform_check( (a > b), "randi(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a <= b) == false), "randi(): incorrect distribution parameters; a must be less than b" );
   
   sword out_val = sword(0);
   
@@ -166,7 +166,7 @@ randi(const distr_param& param)
   
   param.get_int_vals(a,b);
   
-  arma_conform_check( (a > b), "randi(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a <= b) == false), "randi(): incorrect distribution parameters; a must be less than b" );
   
   eT out_val = eT(0);
   
@@ -218,7 +218,7 @@ randi(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
   
   param.get_int_vals(a,b);
   
-  arma_conform_check( (a > b), "randi(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a <= b) == false), "randi(): incorrect distribution parameters; a must be less than b" );
   
   cube_type out(n_rows, n_cols, n_slices, arma_nozeros_indicator());
   
diff --git a/include/armadillo_bits/fn_randn.hpp b/include/armadillo_bits/fn_randn.hpp
index 86a6b826..fbfb8862 100644
--- a/include/armadillo_bits/fn_randn.hpp
+++ b/include/armadillo_bits/fn_randn.hpp
@@ -62,7 +62,7 @@ randn(const distr_param& param)
   
   param.get_double_vals(mu,sd);
   
-  arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+  arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
   
   const double val = double(arma_rng::randn<double>());
   
@@ -86,7 +86,7 @@ randn(const distr_param& param)
   
   param.get_double_vals(mu,sd);
   
-  arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+  arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
   
   eT val = eT(0);
   
@@ -119,7 +119,7 @@ randn(const uword n_elem, const distr_param& param = distr_param())
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<double>::fill(out.memptr(), n_elem, mu, sd);
     }
@@ -156,7 +156,7 @@ randn(const uword n_elem, const distr_param& param = distr_param(), const typena
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<eT>::fill(out.memptr(), out.n_elem, mu, sd);
     }
@@ -188,7 +188,7 @@ randn(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<double>::fill(out.memptr(), out.n_elem, mu, sd);
     }
@@ -237,7 +237,7 @@ randn(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<eT>::fill(out.memptr(), out.n_elem, mu, sd);
     }
@@ -284,7 +284,7 @@ randn(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<double>::fill(out.memptr(), out.n_elem, mu, sd);
     }
@@ -330,7 +330,7 @@ randn(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
     
     param.get_double_vals(mu,sd);
     
-    arma_conform_check( (sd <= double(0)), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
+    arma_conform_check( ((sd > double(0)) == false), "randn(): incorrect distribution parameters; standard deviation must be > 0" );
     
     arma_rng::randn<eT>::fill(out.memptr(), out.n_elem, mu, sd);
     }
diff --git a/include/armadillo_bits/fn_randu.hpp b/include/armadillo_bits/fn_randu.hpp
index 63363e1d..264eeb72 100644
--- a/include/armadillo_bits/fn_randu.hpp
+++ b/include/armadillo_bits/fn_randu.hpp
@@ -62,7 +62,7 @@ randu(const distr_param& param)
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
   
   const double val = double(arma_rng::randu<double>());
   
@@ -86,7 +86,7 @@ randu(const distr_param& param)
   
   param.get_double_vals(a,b);
   
-  arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+  arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
   
   eT val = eT(0);
   
@@ -119,7 +119,7 @@ randu(const uword n_elem, const distr_param& param = distr_param())
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<double>::fill(out.memptr(), n_elem, a, b);
     }
@@ -156,7 +156,7 @@ randu(const uword n_elem, const distr_param& param = distr_param(), const typena
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<eT>::fill(out.memptr(), out.n_elem, a, b);
     }
@@ -188,7 +188,7 @@ randu(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<double>::fill(out.memptr(), out.n_elem, a, b);
     }
@@ -237,7 +237,7 @@ randu(const uword n_rows, const uword n_cols, const distr_param& param = distr_p
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<eT>::fill(out.memptr(), out.n_elem, a, b);
     }
@@ -284,7 +284,7 @@ randu(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<double>::fill(out.memptr(), out.n_elem, a, b);
     }
@@ -330,7 +330,7 @@ randu(const uword n_rows, const uword n_cols, const uword n_slices, const distr_
     
     param.get_double_vals(a,b);
     
-    arma_conform_check( (a >= b), "randu(): incorrect distribution parameters; a must be less than b" );
+    arma_conform_check( ((a < b) == false), "randu(): incorrect distribution parameters; a must be less than b" );
     
     arma_rng::randu<eT>::fill(out.memptr(), out.n_elem, a, b);
     }