Add header guards.

jlmelville · Oct 13, 2018 · 6dadaa6 · 6dadaa6
1 parent bea2159
commit 6dadaa6
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/src/gradient.h b/src/gradient.h
@@ -19,6 +19,9 @@
 
 // The standard UMAP gradient
 
+#ifndef UWOT_GRADIENT_H
+#define UWOT_GRADIENT_H
+
 class umap_gradient {
 public:
   umap_gradient(const double a, const double b, const double gamma);
@@ -66,7 +69,9 @@ class largevis_gradient {
   const double grad_attr(const double dist_squared) const;
   const double grad_rep(const double dist_squared) const;
   static const constexpr double clip_max = 5.0;
-  
+
 private:
   const double gamma_2;
 };
+
+#endif // UWOT_GRADIENT_H
diff --git a/src/tauprng.h b/src/tauprng.h
@@ -18,6 +18,10 @@
 //  along with UWOT.  If not, see <http://www.gnu.org/licenses/>.
 
 // Three-component combined Tausworthe "taus88" PRNG from L'Ecuyer 1996.
+
+#ifndef UWOT_TAUPRNG_H
+#define UWOT_TAUPRNG_H
+
 class tau_prng {
   long long state0;
   long long state1;
@@ -37,3 +41,5 @@ class tau_prng {
     return state0 ^ state1 ^ state2;
   }
 };
+
+#endif // UWOT_TAUPRNG_H