style: add void parameters to C function declarations and definitions #352

Updated function prototypes and definitions across json, lattice, property, text, trie libraries and samples to include explicit void parameters for functions taking no arguments.

Improved code consistency and adherence to C coding standards.

Author: kaorut

library/json/c/include/tetengo/json/element.h

@@ -24,70 +24,70 @@ typedef struct tetengo_json_element_tag tetengo_json_element_t;
 
     \return The type name.
 */
-int tetengo_json_element_typeName_string();
+int tetengo_json_element_typeName_string(void);
 
 /*!
     \brief Returns the type name of number.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_number();
+int tetengo_json_element_typeName_number(void);
 
 /*!
     \brief Returns the type name of boolean.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_boolean();
+int tetengo_json_element_typeName_boolean(void);
 
 /*!
     \brief Returns the type name of null.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_null();
+int tetengo_json_element_typeName_null(void);
 
 /*!
     \brief Returns the type name of object.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_object();
+int tetengo_json_element_typeName_object(void);
 
 /*!
     \brief Returns the type name of member.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_member();
+int tetengo_json_element_typeName_member(void);
 
 /*!
     \brief Returns the type name of array.
 
     \return The type name.
 */
-int tetengo_json_element_typeName_array();
+int tetengo_json_element_typeName_array(void);
 
 /*!
     \brief Returns the type category of primitive.
 
     \return The type category.
 */
-int tetengo_json_element_typeCategory_primitive();
+int tetengo_json_element_typeCategory_primitive(void);
 
 /*!
     \brief Returns the type category of opening structure.
 
     \return The type category.
 */
-int tetengo_json_element_typeCategory_structureOpen();
+int tetengo_json_element_typeCategory_structureOpen(void);
 
 /*!
     \brief Returns the type category of closing structure.
 
     \return The type category.
 */
-int tetengo_json_element_typeCategory_structureClose();
+int tetengo_json_element_typeCategory_structureClose(void);
 
 /*! The type type. */
 typedef struct tetengo_json_element_type_tag

library/json/c/include/tetengo/json/reader.h

@@ -45,7 +45,7 @@ typedef struct tetengo_json_location_tag
 
     \return The default buffer capacity.
 */
-size_t tetengo_json_reader_streamReaderDefaultBufferCapacity();
+size_t tetengo_json_reader_streamReaderDefaultBufferCapacity(void);
 
 /*!
     \brief Creates a stream reader.

library/json/test/src/usage_tetengo.json.parsing_c.c

@@ -20,7 +20,7 @@
 int         make_json_file(const char* text, const char* path);
 const char* to_string(const tetengo_json_element_t* p_element);
 
-void usage_tetengo_json_parsing()
+void usage_tetengo_json_parsing(void)
 {
     // clang-format off
     static const char* const json_text =

library/json/test/src/usage_tetengo.json.parsing_c.h

@@ -13,7 +13,7 @@
 extern "C" {
 #endif
 
-void usage_tetengo_json_parsing();
+void usage_tetengo_json_parsing(void);
 
 
 #if defined(__cplusplus)

library/lattice/c/include/tetengo/lattice/constraint.h

@@ -30,7 +30,7 @@ typedef struct tetengo_lattice_constraint_tag tetengo_lattice_constraint_t;
 
     \return A pointer to an empty constraint.
 */
-tetengo_lattice_constraint_t* tetengo_lattice_constraint_createEmpty();
+tetengo_lattice_constraint_t* tetengo_lattice_constraint_createEmpty(void);
 
 /*!
     \brief Creates a constraint.

library/lattice/c/include/tetengo/lattice/entry.h

@@ -107,7 +107,7 @@ tetengo_lattice_entry_keyHandle_t tetengo_lattice_entry_toKeyHandle(const teteng
 
     \return The pointer to the BOS/EOS entry.
 */
-const tetengo_lattice_entryView_t* tetengo_lattice_entryView_bosEos();
+const tetengo_lattice_entryView_t* tetengo_lattice_entryView_bosEos(void);
 
 /*!
     \brief Creates an entry view key by a handle.

library/lattice/c/include/tetengo/lattice/path.h

@@ -27,7 +27,7 @@ typedef struct tetengo_lattice_path_tag tetengo_lattice_path_t;
 
     \return A pointer to a path. Or NULL when p_nodes is NULL.
 */
-tetengo_lattice_path_t* tetengo_lattice_path_createEmpty();
+tetengo_lattice_path_t* tetengo_lattice_path_createEmpty(void);
 
 /*!
     \brief Creates a path.

library/lattice/test/src/usage_tetengo.lattice.viterbi_c.c

@@ -25,10 +25,10 @@
 #include <tetengo/lattice/vocabulary.h>
 
 
-tetengo_lattice_vocabulary_t* build_vocabulary();
+tetengo_lattice_vocabulary_t* build_vocabulary(void);
 const char*                   to_string(const tetengo_lattice_path_t* p_path);
 
-void usage_tetengo_lattice_viterbi()
+void usage_tetengo_lattice_viterbi(void)
 {
     /*
         Makes the following lattice and searches it.
@@ -144,7 +144,7 @@ entry_equal_to(const tetengo_lattice_entryView_t* const p_entry1, const tetengo_
     return equality;
 }
 
-tetengo_lattice_vocabulary_t* build_vocabulary()
+tetengo_lattice_vocabulary_t* build_vocabulary(void)
 {
     // The contents of the vocabulary.
     const tetengo_lattice_input_t* const    p_entry_key_a = tetengo_lattice_input_createStringInput("a");

library/lattice/test/src/usage_tetengo.lattice.viterbi_c.h

@@ -13,7 +13,7 @@
 extern "C" {
 #endif
 
-void usage_tetengo_lattice_viterbi();
+void usage_tetengo_lattice_viterbi(void);
 
 
 #if defined(__cplusplus)

library/property/c/include/tetengo/property/storage.h

@@ -111,21 +111,21 @@ void tetengo_property_storage_save(const tetengo_property_storage_t* p_storage);
 
     \return A pointer to a storage loader.
 */
-tetengo_property_storageLoader_t* tetengo_property_storageLoader_createMemoryStorageLoader();
+tetengo_property_storageLoader_t* tetengo_property_storageLoader_createMemoryStorageLoader(void);
 
 /*!
     \brief Creates a file storage loader.
 
     \return A pointer to a storage loader.
 */
-tetengo_property_storageLoader_t* tetengo_property_storageLoader_createFileStorageLoader();
+tetengo_property_storageLoader_t* tetengo_property_storageLoader_createFileStorageLoader(void);
 
 /*!
     \brief Creates a Windows registry storage loader.
 
     \return A pointer to a storage loader.
 */
-tetengo_property_storageLoader_t* tetengo_property_storageLoader_createWindowsRegistoryStorageLoader();
+tetengo_property_storageLoader_t* tetengo_property_storageLoader_createWindowsRegistoryStorageLoader(void);
 
 /*!
     \brief Creates a storage loader proxy.