fix prototypes for fn()

example/hfp_ag_demo.c

@@ -253,7 +253,7 @@ static void inquiry_packet_handler (uint8_t packet_type, uint8_t *packet, uint16
 #ifdef HAVE_STDIO
 
 // prototypes
-static void show_usage();
+static void show_usage(void);
 
 // Testig User Interface 
 static void show_usage(void){

example/hfp_hf_demo.c

@@ -67,7 +67,7 @@ const char hfp_hf_service_name[] = "BTstack HFP HF Demo";
 #ifdef HAVE_STDIO
 static bd_addr_t device_addr = {0xD8,0xBb,0x2C,0xDf,0xF1,0x08};
 // prototypes
-static void show_usage();
+static void show_usage(void);
 #endif
 static uint16_t handle = -1;
 static uint8_t codecs[] = {HFP_CODEC_CVSD, HFP_CODEC_MSBC};

src/classic/hfp_ag.c

@@ -70,8 +70,8 @@ static void hfp_ag_setup_audio_connection(hfp_connection_t * connection);
 static void hfp_ag_hf_start_ringing(hfp_connection_t * context);
 
 // public prototypes
-hfp_generic_status_indicator_t * get_hfp_generic_status_indicators();
-int get_hfp_generic_status_indicators_nr();
+hfp_generic_status_indicator_t * get_hfp_generic_status_indicators(void);
+int get_hfp_generic_status_indicators_nr(void);
 void set_hfp_generic_status_indicators(hfp_generic_status_indicator_t * indicators, int indicator_nr);
 void set_hfp_ag_indicators(hfp_ag_indicator_t * indicators, int indicator_nr);
 int get_hfp_ag_indicators_nr(hfp_connection_t * context);

test/gatt_client/gatt_client_test.c

@@ -71,8 +71,8 @@ static gatt_client_service_t included_services[50];
 static gatt_client_characteristic_t characteristics[50];
 static gatt_client_characteristic_descriptor_t descriptors[50];
 
-void mock_simulate_discover_primary_services_response();
-void mock_simulate_att_exchange_mtu_response();
+void mock_simulate_discover_primary_services_response(void);
+void mock_simulate_att_exchange_mtu_response(void);
 
 void CHECK_EQUAL_ARRAY(const uint8_t * expected, uint8_t * actual, int size){
 	for (int i=0; i<size; i++){

test/gatt_client/le_central.c

@@ -26,10 +26,10 @@ static uint8_t connected;
 static uint8_t advertisement_packet[150];
 static btstack_packet_callback_registration_t hci_event_callback_registration;
 
-void mock_simulate_hci_state_working();
+void mock_simulate_hci_state_working(void);
 void mock_simulate_command_complete(const hci_cmd_t *cmd);
-void mock_simulate_scan_response();
-void mock_simulate_connected();
+void mock_simulate_scan_response(void);
+void mock_simulate_connected(void);
 
 
 void CHECK_EQUAL_ARRAY(const uint8_t * expected, uint8_t * actual, int size){

test/pts/ble_central_test.c

@@ -200,7 +200,7 @@ static gatt_client_service_t        service;
 static btstack_packet_callback_registration_t hci_event_callback_registration;
 static btstack_packet_callback_registration_t sm_event_callback_registration;
 
-static void show_usage();
+static void show_usage(void);
 ///
 
 static void printUUID(uint8_t * uuid128, uint16_t uuid16){

test/pts/ble_peripheral_test.c

@@ -118,9 +118,9 @@ static uint16_t client_configuration_handle;
 
 static uint16_t handle = 0;
 
-static void app_run();
-static void show_usage();
-static void update_advertisements();
+static void app_run(void);
+static void show_usage(void);
+static void update_advertisements(void);
 
 
 // static bd_addr_t tester_address = {0x00, 0x1B, 0xDC, 0x06, 0x07, 0x5F};

test/pts/bnep_test.c

@@ -91,7 +91,7 @@
 #define ARP_OPERATION_REPLY   2
 
 // prototypes
-static void show_usage();
+static void show_usage(void);
 
 // Configuration for PTS
 static bd_addr_t pts_addr = {0x00,0x1b,0xDC,0x07,0x32,0xEF};

test/pts/classic_test.c

@@ -65,7 +65,7 @@
 #include "l2cap.h"
 #include "stdin_support.h"
 
-static void show_usage();
+static void show_usage(void);
 
 // static bd_addr_t remote = {0x04,0x0C,0xCE,0xE4,0x85,0xD3};
 // static bd_addr_t remote = {0x84, 0x38, 0x35, 0x65, 0xD1, 0x15};

test/pts/hfp_ag_test.c

@@ -102,7 +102,7 @@ static hfp_generic_status_indicator_t hf_indicators[] = {
 
 char cmd;
 // prototypes
-static void show_usage();
+static void show_usage(void);
 
 // GAP INQUIRY
 

test/pts/hfp_hf_test.c

@@ -85,7 +85,7 @@ static uint16_t indicators[1] = {0x01};
 char cmd;
 
 // prototypes
-static void show_usage();
+static void show_usage(void);
 
 // Testig User Interface 
 static void show_usage(void){

test/pts/hsp_hs_test.c

@@ -85,7 +85,7 @@ static bd_addr_t current_addr;
 static char hs_cmd_buffer[100];
 
 // prototypes
-static void show_usage();
+static void show_usage(void);
 
 // Testig User Interface 
 static void show_usage(void){

test/pts/l2cap_test.c

@@ -59,7 +59,7 @@
 #include "l2cap.h"
 #include "stdin_support.h"
  
-static void show_usage();
+static void show_usage(void);
 
 // static bd_addr_t remote = {0x04,0x0C,0xCE,0xE4,0x85,0xD3};
 static bd_addr_t remote = {0x84, 0x38, 0x35, 0x65, 0xD1, 0x15};