Merge pull request #26 from rhysgt/rhys-fix

Fix bug

Author: alexlib

openpiv/gpu/misc.py

@@ -365,7 +365,7 @@ def gpu_scalar_mod(f, m):
     if (t_idx >= size) {return;}
     
     // Check for NaNs.
-    if (std::isnan(f[t_idx])) {f[t_idx] = 0.0f;}
+    if (isnan(f[t_idx])) {f[t_idx] = 0.0f;}
 }
 """
 )