fix pnnx hardtanh ncnn conversion

tools/pnnx/src/pass_ncnn/F_hardtanh.cpp

@@ -14,6 +14,8 @@
 
 #include "pass_ncnn.h"
 
+#include <float.h>
+
 namespace pnnx {
 
 namespace ncnn {
@@ -26,7 +28,7 @@ public:
         return R"PNNXIR(7767517
 3 2
 pnnx.Input              input       0 1 input
-F.hardtanh              op_0        1 1 input out min_val=%0 max_val=%1
+F.hardtanh              op_0        1 1 input out min_val=%min_val max_val=%max_val
 pnnx.Output             output      1 0 out
 )PNNXIR";
     }
@@ -40,6 +42,33 @@ pnnx.Output             output      1 0 out
     {
         return "htanh";
     }
+
+    void write(Operator* op, const std::map<std::string, Parameter>& captured_params) const
+    {
+        float min = -FLT_MAX;
+        float max = FLT_MAX;
+
+        if (captured_params.at("min_val").type == 2)
+        {
+            min = captured_params.at("min_val").i;
+        }
+        if (captured_params.at("min_val").type == 3)
+        {
+            min = captured_params.at("min_val").f;
+        }
+
+        if (captured_params.at("max_val").type == 2)
+        {
+            max = captured_params.at("max_val").i;
+        }
+        if (captured_params.at("max_val").type == 3)
+        {
+            max = captured_params.at("max_val").f;
+        }
+
+        op->params["0"] = min;
+        op->params["1"] = max;
+    }
 };
 
 REGISTER_GLOBAL_PNNX_NCNN_GRAPH_REWRITER_PASS(F_hardtanh, 20)

tools/pnnx/src/pass_ncnn/F_leaky_relu.cpp

@@ -26,7 +26,7 @@ public:
         return R"PNNXIR(7767517
 3 2
 pnnx.Input              input       0 1 input
-F.leaky_relu            op_0        1 1 input out negative_slope=%0
+F.leaky_relu            op_0        1 1 input out negative_slope=%negative_slope
 pnnx.Output             output      1 0 out
 )PNNXIR";
     }
@@ -40,6 +40,22 @@ pnnx.Output             output      1 0 out
     {
         return "leakyrelu";
     }
+
+    void write(Operator* op, const std::map<std::string, Parameter>& captured_params) const
+    {
+        float negative_slope = 0.f;
+
+        if (captured_params.at("negative_slope").type == 2)
+        {
+            negative_slope = captured_params.at("negative_slope").i;
+        }
+        if (captured_params.at("negative_slope").type == 3)
+        {
+            negative_slope = captured_params.at("negative_slope").f;
+        }
+
+        op->params["0"] = negative_slope;
+    }
 };
 
 REGISTER_GLOBAL_PNNX_NCNN_GRAPH_REWRITER_PASS(F_leaky_relu, 20)

tools/pnnx/src/pass_ncnn/nn_LeakyReLU.cpp

@@ -43,7 +43,18 @@ pnnx.Output             output      1 0 out
 
     void write(Operator* op, const std::map<std::string, Parameter>& captured_params) const
     {
-        op->params["0"] = captured_params.at("negative_slope");
+        float negative_slope = 0.f;
+
+        if (captured_params.at("negative_slope").type == 2)
+        {
+            negative_slope = captured_params.at("negative_slope").i;
+        }
+        if (captured_params.at("negative_slope").type == 3)
+        {
+            negative_slope = captured_params.at("negative_slope").f;
+        }
+
+        op->params["0"] = negative_slope;
     }
 };