change the INPUT check of exx_ccp_rmesh_times

Author: PeizeLin

docs/advanced/input_files/input-main.md

@@ -3030,7 +3030,7 @@ These variables are relevant when using hybrid functionals with *[basis_type](#b
 ### exx_ccp_rmesh_times
 
 - **Type**: Real
-- **Description**: This parameter determines how many times larger the radial mesh required for calculating Columb potential is to that of atomic orbitals. The value should be at least 1. Reducing this value can effectively increase the speed of self-consistent calculations using hybrid functionals.
+- **Description**: This parameter determines how many times larger the radial mesh required for calculating Columb potential is to that of atomic orbitals. The value should be larger than 0. Reducing this value can effectively increase the speed of self-consistent calculations using hybrid functionals.
 - **Default**:
   - 5: if *[dft_functional](#dft_functional)==hf/pbe0/scan0/muller/power/wp22*
   - 1.5: if *[dft_functional](#dft_functional)==hse/cwp22*

source/source_io/read_input_item_exx_dftu.cpp

@@ -331,12 +331,12 @@ void ReadInput::item_exx()
                 }
             }
         };
-        //item.check_value = [](const Input_Item& item, const Parameter& para) {
-        //    if (std::stod(para.input.exx_ccp_rmesh_times) < 1)
-        //    {
-        //        ModuleBase::WARNING_QUIT("ReadInput", "exx_ccp_rmesh_times must >= 1");
-        //    }
-        //};
+        item.check_value = [](const Input_Item& item, const Parameter& para) {
+            if (std::stod(para.input.exx_ccp_rmesh_times) <=0)
+            {
+                ModuleBase::WARNING_QUIT("ReadInput", "exx_ccp_rmesh_times must > 0");
+            }
+        };
         this->add_item(item);
     }
     {

source/source_io/test_serial/read_input_item_test.cpp

@@ -1396,6 +1396,12 @@ TEST_F(InputTest, Item_test2)
         param.input.dft_functional = "none";
         it->second.reset_value(it->second, param);
         EXPECT_EQ(param.input.exx_ccp_rmesh_times, "1");
+
+        param.input.exx_ccp_rmesh_times = "-1";
+        testing::internal::CaptureStdout();
+        EXPECT_EXIT(it->second.check_value(it->second, param), ::testing::ExitedWithCode(1), "");
+        output = testing::internal::GetCapturedStdout();
+        EXPECT_THAT(output, testing::HasSubstr("NOTICE"));
     }
     { // exx_opt_orb_ecut
         auto it = find_label("exx_opt_orb_ecut", readinput.input_lists);