4 files changed, 24 insertions, 1 deletions
diff --git a/src/core/endian_type.hpp b/src/core/endian_type.hpp
index ad0b814c6..dbb7faec6 100644
--- a/src/core/endian_type.hpp
+++ b/src/core/endian_type.hpp
@@ -13,12 +13,16 @@
 #define ENDIAN_TYPE_HPP
 
 #if defined(ARM) || defined(__arm__) || defined(__alpha__)
+	/** The architecture requires aligned access. */
 	#define OTTD_ALIGNMENT 1
 #else
+	/** The architecture does not require aligned access. */
 	#define OTTD_ALIGNMENT 0
 #endif
 
+/** Little endian builds use this for TTD_ENDIAN. */
 #define TTD_LITTLE_ENDIAN 0
+/** Big endian builds use this for TTD_ENDIAN. */
 #define TTD_BIG_ENDIAN 1
 
 /* Windows has always LITTLE_ENDIAN */
diff --git a/src/core/pool_func.hpp b/src/core/pool_func.hpp
index 0d9c23165..8f53c66f9 100644
--- a/src/core/pool_func.hpp
+++ b/src/core/pool_func.hpp
@@ -16,6 +16,10 @@
 #include "mem_func.hpp"
 #include "pool_type.hpp"
 
+/**
+ * Helper for defining the method's signature.
+ * @param type The return type of the method.
+ */
 #define DEFINE_POOL_METHOD(type) \
 	template <class Titem, typename Tindex, size_t Tgrowth_step, size_t Tmax_size, PoolType Tpool_type, bool Tcache, bool Tzero> \
 	type Pool<Titem, Tindex, Tgrowth_step, Tmax_size, Tpool_type, Tcache, Tzero>
diff --git a/src/core/smallvec_type.hpp b/src/core/smallvec_type.hpp
index 8116ca2ea..00fb7c5a0 100644
--- a/src/core/smallvec_type.hpp
+++ b/src/core/smallvec_type.hpp
@@ -35,12 +35,20 @@ protected:
 public:
 	SmallVector() : data(NULL), items(0), capacity(0) { }
 
+	/**
+	 * Copy constructor.
+	 * @param other The other vector to copy.
+	 */
 	template <uint X>
 	SmallVector(const SmallVector<T, X> &other) : data(NULL), items(0), capacity(0)
 	{
 		MemCpyT<T>(this->Append(other.Length()), other.Begin(), other.Length());
 	}
 
+	/**
+	 * Assignment.
+	 * @param other The new vector that.
+	 */
 	template <uint X>
 	SmallVector &operator=(const SmallVector<T, X> &other)
 	{
@@ -318,6 +326,6 @@ public:
 	}
 };
 
-typedef AutoFreeSmallVector<char*, 4> StringList;
+typedef AutoFreeSmallVector<char*, 4> StringList; ///< Type for a list of strings.
 
 #endif /* SMALLVEC_TYPE_HPP */
diff --git a/src/core/string_compare_type.hpp b/src/core/string_compare_type.hpp
index 2bc018feb..77180747b 100644
--- a/src/core/string_compare_type.hpp
+++ b/src/core/string_compare_type.hpp
@@ -12,7 +12,14 @@
 #ifndef STRING_COMPARE_TYPE_HPP
 #define STRING_COMPARE_TYPE_HPP
 
+/** Comparator for strings. */
 struct StringCompare {
+	/**
+	 * Compare two strings.
+	 * @param a The first string.
+	 * @param b The second string.
+	 * @return True is the first string is deemed "lower" than the second string.
+	 */
 	bool operator () (const char *a, const char *b) const
 	{
 		return strcmp(a, b) < 0;