diff options
Diffstat (limited to 'generic/Square.c')
-rw-r--r-- | generic/Square.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/generic/Square.c b/generic/Square.c new file mode 100644 index 0000000..409055d --- /dev/null +++ b/generic/Square.c @@ -0,0 +1,45 @@ +#ifndef TH_GENERIC_FILE +#define TH_GENERIC_FILE "generic/Square.c" +#else + +static int nn_(Square_updateOutput)(lua_State *L) +{ + THTensor *input = luaT_checkudata(L, 2, torch_(Tensor_id)); + THTensor *output = luaT_getfieldcheckudata(L, 1, "output", torch_(Tensor_id)); + + THTensor_(resizeAs)(output, input); + + TH_TENSOR_APPLY2(real, output, real, input, \ + *output_data = *input_data * *input_data;); + + return 1; +} + +static int nn_(Square_updateGradInput)(lua_State *L) +{ + THTensor *input = luaT_checkudata(L, 2, torch_(Tensor_id)); + THTensor *gradOutput = luaT_checkudata(L, 3, torch_(Tensor_id)); + THTensor *gradInput = luaT_getfieldcheckudata(L, 1, "gradInput", torch_(Tensor_id)); + + THTensor_(resizeAs)(gradInput, input); + + TH_TENSOR_APPLY3(real, gradInput, real, gradOutput, real, input, \ + *gradInput_data = 2.0 * (*gradOutput_data) * (*input_data);); + + return 1; +} + +static const struct luaL_Reg nn_(Square__) [] = { + {"Square_updateOutput", nn_(Square_updateOutput)}, + {"Square_updateGradInput", nn_(Square_updateGradInput)}, + {NULL, NULL} +}; + +static void nn_(Square_init)(lua_State *L) +{ + luaT_pushmetaclass(L, torch_(Tensor_id)); + luaT_registeratname(L, nn_(Square__), "nn"); + lua_pop(L,1); +} + +#endif |