6 files changed, 46 insertions, 0 deletions
diff --git a/src/core/config/boolean.cc b/src/core/config/boolean.cc
index 45d5a38..74c7b07 100644
--- a/src/core/config/boolean.cc
+++ b/src/core/config/boolean.cc
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: boolean.cc
+// Description: Boolean config value
+
 #include "core/pch.hh"
 
 #include "core/config/boolean.hh"
diff --git a/src/core/config/boolean.hh b/src/core/config/boolean.hh
index cfd8b0b..238b978 100644
--- a/src/core/config/boolean.hh
+++ b/src/core/config/boolean.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: boolean.hh
+// Description: Boolean config value
+
+#ifndef CORE_CONFIG_BOOLEAN_HH
+#define CORE_CONFIG_BOOLEAN_HH
 #pragma once
 
 #include "core/config/ivalue.hh"
@@ -23,3 +30,5 @@ public:
     static bool from_string(std::string_view value);
 };
 } // namespace config
+
+#endif
diff --git a/src/core/config/ivalue.hh b/src/core/config/ivalue.hh
index 13e9a3a..088276a 100644
--- a/src/core/config/ivalue.hh
+++ b/src/core/config/ivalue.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: ivalue.hh
+// Description: Base config value interface
+
+#ifndef CORE_CONFIG_IVALUE_HH
+#define CORE_CONFIG_IVALUE_HH
 #pragma once
 
 namespace config
@@ -9,3 +16,5 @@ public:
     virtual std::string_view get(void) const = 0;
 };
 } // namespace config
+
+#endif
diff --git a/src/core/config/number.hh b/src/core/config/number.hh
index 4f185e1..eb1f462 100644
--- a/src/core/config/number.hh
+++ b/src/core/config/number.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: number.hh
+// Description: Arithmetic config value
+
+#ifndef CORE_CONFIG_NUMBER_HH
+#define CORE_CONFIG_NUMBER_HH
 #pragma once
 
 #include "core/config/ivalue.hh"
@@ -128,3 +135,5 @@ inline void config::Number<T>::set_limits(T min_value, T max_value)
     m_value = std::clamp(m_value, m_min_value, m_max_value);
     m_string = std::to_string(m_value);
 }
+
+#endif
diff --git a/src/core/config/string.cc b/src/core/config/string.cc
index 198b448..e5820f6 100644
--- a/src/core/config/string.cc
+++ b/src/core/config/string.cc
@@ -1,3 +1,8 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: string.cc
+// Description: String config value
+
 #include "core/pch.hh"
 
 #include "core/config/string.hh"
diff --git a/src/core/config/string.hh b/src/core/config/string.hh
index 8fd3901..faecb67 100644
--- a/src/core/config/string.hh
+++ b/src/core/config/string.hh
@@ -1,3 +1,10 @@
+// SPDX-License-Identifier: BSD-2-Clause
+// Copyright (c) 2025 Kirill Dmitrievich
+// File: string.hh
+// Description: String config value
+
+#ifndef CORE_CONFIG_STRING_HH
+#define CORE_CONFIG_STRING_HH
 #pragma once
 
 #include "core/config/ivalue.hh"
@@ -29,3 +36,5 @@ constexpr const char* config::String::c_str(void) const noexcept
 {
     return m_value.c_str();
 }
+
+#endif