use std::isnan

yanqingmen · May 29, 2015 · fc79d65 · fc79d65
1 parent 7b195c4
commit fc79d65
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/updater/sgd_updater-inl.hpp b/src/updater/sgd_updater-inl.hpp
@@ -16,8 +16,7 @@ namespace updater {
 /*! \brief used for gradient clipping and nan detection */
 struct clip {
   MSHADOW_XINLINE static real_t Map(real_t a, real_t b) {
-    using namespace std;
-    if (isnan(a)) return 0.0f;
+    if (std::isnan(a)) return 0.0f;
     if (a < -b) return -b;
     if (a > b) return b;
     return a;