Fix strict-prototypes warnings

Author: jeroen

DESCRIPTION

@@ -1,5 +1,5 @@
 Package: RMySQL
-Version: 0.10.23
+Version: 0.10.24
 Title: Database Interface and 'MySQL' Driver for R
 Description: Legacy 'DBI' interface to 'MySQL' / 'MariaDB' based on old code
     ported from S-PLUS. A modern 'MySQL' client based on 'Rcpp' is available 

NEWS.md

@@ -1,3 +1,7 @@
+# Version 0.10.24
+
+ * Fix strict-prototypes warnings
+
 # Version 0.10.23
 
  * Windows: update to mariadb-connector-c 3.2.5. This new version still uses OpenSSL for R <= 4.1 but R 4.2 (ucrt) it switches to the new native Windows schannel TLS.

src/RS-MySQL.h

@@ -101,9 +101,9 @@ typedef struct MySQLDriver {
 
 // Driver ----------------------------------------------------------------------
 
-MySQLDriver* rmysql_driver();
+MySQLDriver* rmysql_driver(void);
 SEXP rmysql_driver_init(SEXP max_con_, SEXP fetch_default_rec_);
-SEXP rmysql_driver_info();
+SEXP rmysql_driver_info(void);
 
 SEXP rmysql_exception_info(SEXP conHandle);
 

src/driver.c

@@ -1,12 +1,12 @@
 #include "RS-MySQL.h"
 
 static MySQLDriver* dbManager = NULL;
-MySQLDriver* rmysql_driver() {
+MySQLDriver* rmysql_driver(void) {
   if (!dbManager) error("Corrupt MySQL handle");
   return dbManager;
 }
 
-SEXP rmysql_driver_valid() {
+SEXP rmysql_driver_valid(void) {
   if(!dbManager || !dbManager->connections) {
     return ScalarLogical(FALSE);
   } else {
@@ -56,7 +56,7 @@ SEXP rmysql_driver_init(SEXP max_con_, SEXP fetch_default_rec_) {
   return mgrHandle;
 }
 
-SEXP rmysql_driver_close() {
+SEXP rmysql_driver_close(void) {
   MySQLDriver *mgr = rmysql_driver();
 
   if(mgr->num_con)
@@ -75,7 +75,7 @@ SEXP rmysql_driver_close() {
   return ScalarLogical(TRUE);
 }
 
-SEXP rmysql_driver_info() {
+SEXP rmysql_driver_info(void) {
   MySQLDriver *mgr = rmysql_driver();
 
   // Allocate output

src/utils.c

@@ -258,7 +258,7 @@ SEXP rmysql_escape_strings(SEXP conHandle, SEXP strings) {
   return output;
 }
 
-SEXP rmysql_version() {
+SEXP rmysql_version(void) {
   SEXP output = PROTECT(allocVector(INTSXP, 2));
   SEXP output_nms = PROTECT(allocVector(STRSXP, 2));
   SET_NAMES(output, output_nms);