[Minor] Move lua contrib libraries to lua- prefix

1 files changed, 26 insertions, 0 deletions

diff --git a/contrib/lua-torch/nn/Sqrt.lua b/contrib/lua-torch/nn/Sqrt.lua
new file mode 100644
index 000000000..df354a175
--- /dev/null
+++ b/contrib/lua-torch/nn/Sqrt.lua
@@ -0,0 +1,26 @@
+local Sqrt, parent = torch.class('nn.Sqrt','nn.Module')
+
+function Sqrt:__init(b)
+   parent.__init(self)
+   self.eps = b or 0
+end
+
+function Sqrt:updateOutput(input)
+   self.eps = self.eps or 0
+   input.THNN.Sqrt_updateOutput(
+      input:cdata(),
+      self.output:cdata(),
+      self.eps
+   )
+   return self.output
+end
+
+function Sqrt:updateGradInput(input, gradOutput)
+   input.THNN.Sqrt_updateGradInput(
+      input:cdata(),
+      gradOutput:cdata(),
+      self.gradInput:cdata(),
+      self.output:cdata()
+   )
+   return self.gradInput
+end