Use strict function prototypes

int foo(); declares a function taking any number of arguments.

Action.c

@@ -272,7 +272,7 @@ static Htop_Reaction actionExpandCollapseOrSortColumn(State* st) {
    return st->settings->treeView ? actionExpandOrCollapse(st) : actionSetSortColumn(st);
 }
 
-static Htop_Reaction actionQuit() {
+static Htop_Reaction actionQuit(ATTR_UNUSED State* st) {
    return HTOP_QUIT;
 }
 
@@ -386,7 +386,7 @@ static Htop_Reaction actionTag(State* st) {
    return HTOP_OK;
 }
 
-static Htop_Reaction actionRedraw() {
+static Htop_Reaction actionRedraw(ATTR_UNUSED State *st) {
    clear();
    return HTOP_REFRESH | HTOP_REDRAW_BAR;
 }

Action.h

@@ -24,8 +24,6 @@ typedef enum {
    HTOP_UPDATE_PANELHDR = 0x41, // implies HTOP_REFRESH
 } Htop_Reaction;
 
-typedef Htop_Reaction (*Htop_Action)();
-
 typedef struct State_ {
    Settings* settings;
    UsersTable* ut;
@@ -34,6 +32,8 @@ typedef struct State_ {
    Header* header;
 } State;
 
+typedef Htop_Reaction (*Htop_Action)(State* st);
+
 Object* Action_pickFromVector(State* st, Panel* list, int x, bool followProcess);
 
 bool Action_setUserOnly(const char* userName, uid_t* userId);

CRT.h

@@ -149,9 +149,9 @@ extern void *backtraceArray[128];
 
 #if HAVE_SETUID_ENABLED
 
-void CRT_dropPrivileges();
+void CRT_dropPrivileges(void);
 
-void CRT_restorePrivileges();
+void CRT_restorePrivileges(void);
 
 #else
 
@@ -166,15 +166,15 @@ void CRT_restorePrivileges();
 
 void CRT_init(int delay, int colorScheme, bool allowUnicode);
 
-void CRT_done();
+void CRT_done(void);
 
 void CRT_fatalError(const char* note);
 
-int CRT_readKey();
+int CRT_readKey(void);
 
-void CRT_disableDelay();
+void CRT_disableDelay(void);
 
-void CRT_enableDelay();
+void CRT_enableDelay(void);
 
 void CRT_setColors(int colorScheme);
 

MainPanel.h

@@ -36,7 +36,7 @@ bool MainPanel_foreachProcess(MainPanel* this, MainPanel_ForeachProcessFn fn, Ar
 
 extern PanelClass MainPanel_class;
 
-MainPanel* MainPanel_new();
+MainPanel* MainPanel_new(void);
 
 void MainPanel_setState(MainPanel* this, State* state);
 

Process.h

@@ -169,7 +169,7 @@ typedef struct ProcessClass_ {
 
 extern char Process_pidFormat[20];
 
-void Process_setupColumnWidths();
+void Process_setupColumnWidths(void);
 
 void Process_humanNumber(RichString* str, unsigned long number, bool coloring);
 

SignalsPanel.h

@@ -12,6 +12,6 @@ typedef struct SignalItem_ {
    int number;
 } SignalItem;
 
-Panel* SignalsPanel_new();
+Panel* SignalsPanel_new(void);
 
 #endif

UsersTable.h

@@ -13,7 +13,7 @@ typedef struct UsersTable_ {
    Hashtable* users;
 } UsersTable;
 
-UsersTable* UsersTable_new();
+UsersTable* UsersTable_new(void);
 
 void UsersTable_delete(UsersTable* this);
 

darwin/Platform.h

@@ -28,11 +28,11 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern int Platform_numberOfFields;
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 extern ProcessPidColumn Process_pidColumns[];
 

dragonflybsd/Platform.h

@@ -26,11 +26,11 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern MeterClass* Platform_meterTypes[];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);
 

freebsd/Platform.h

@@ -25,11 +25,11 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern MeterClass* Platform_meterTypes[];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);
 

htop.c

@@ -29,12 +29,12 @@ in the source distribution for its full text.
 
 //#link m
 
-static void printVersionFlag() {
+static void printVersionFlag(void) {
    fputs("htop " VERSION "\n", stdout);
    exit(0);
 }
 
-static void printHelpFlag() {
+static void printHelpFlag(void) {
    fputs("htop " VERSION "\n"
          "Released under the GNU GPL.\n\n"
          "-C --no-color               Use a monochrome color scheme\n"

linux/Battery.c

@@ -89,7 +89,7 @@ static unsigned long int parseBatInfo(const char *fileName, const unsigned short
    return total;
 }
 
-static ACPresence procAcpiCheck() {
+static ACPresence procAcpiCheck(void) {
    ACPresence isOn = AC_ERROR;
    const char *power_supplyPath = PROCDIR "/acpi/ac_adapter";
    DIR *dir = opendir(power_supplyPath);
@@ -137,7 +137,7 @@ static ACPresence procAcpiCheck() {
    return isOn;
 }
 
-static double Battery_getProcBatData() {
+static double Battery_getProcBatData(void) {
    const unsigned long int totalFull = parseBatInfo("info", 3, 4);
    if (totalFull == 0)
       return 0;

linux/Platform.h

@@ -25,11 +25,11 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern MeterClass* Platform_meterTypes[];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);
 

openbsd/Platform.h

@@ -27,11 +27,11 @@ void Platform_setBindings(Htop_Action* keys);
 
 extern MeterClass* Platform_meterTypes[];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);
 

solaris/Platform.h

@@ -45,11 +45,11 @@ extern int Platform_numberOfFields;
 
 extern char Process_pidFormat[20];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);
 

unsupported/Platform.h

@@ -31,11 +31,11 @@ extern char Process_pidFormat[20];
 
 extern ProcessPidColumn Process_pidColumns[];
 
-int Platform_getUptime();
+int Platform_getUptime(void);
 
 void Platform_getLoadAverage(double* one, double* five, double* fifteen);
 
-int Platform_getMaxPid();
+int Platform_getMaxPid(void);
 
 double Platform_setCPUValues(Meter* this, int cpu);