Removed all warnings

Author: cmaglie

src/SD.cpp

@@ -233,7 +233,7 @@ boolean walkPath(const char *filepath, SdFile& parentDir,
  */
 
 boolean callback_pathExists(SdFile& parentDir, const char *filePathComponent, 
-			    boolean isLastComponent, void *object) {
+			    boolean /* isLastComponent */, void * /* object */) {
   /*
 
     Callback used to determine if a file/directory exists in parent
@@ -311,15 +311,15 @@ boolean callback_openPath(SdFile& parentDir, char *filePathComponent,
 
 
 boolean callback_remove(SdFile& parentDir, const char *filePathComponent, 
-			boolean isLastComponent, void *object) {
+			boolean isLastComponent, void * /* object */) {
   if (isLastComponent) {
     return SdFile::remove(parentDir, filePathComponent);
   }
   return true;
 }
 
 boolean callback_rmdir(SdFile& parentDir, const char *filePathComponent, 
-			boolean isLastComponent, void *object) {
+			boolean isLastComponent, void * /* object */) {
   if (isLastComponent) {
     SdFile f;
     if (!f.open(parentDir, filePathComponent, O_READ)) return false;

src/utility/Sd2Card.cpp

@@ -376,7 +376,6 @@ uint8_t Sd2Card::readBlock(uint32_t block, uint8_t* dst) {
  */
 uint8_t Sd2Card::readData(uint32_t block,
         uint16_t offset, uint16_t count, uint8_t* dst) {
-  uint16_t n;
   if (count == 0) return true;
   if ((count + offset) > 512) {
     goto fail;

src/utility/SdFile.cpp

@@ -904,8 +904,8 @@ uint8_t SdFile::rmRfStar(void) {
       if (!f.remove()) return false;
     }
     // position to next entry if required
-    if (curPosition_ != (32*(index + 1))) {
-      if (!seekSet(32*(index + 1))) return false;
+    if (curPosition_ != (32u*(index + 1))) {
+      if (!seekSet(32u*(index + 1))) return false;
     }
   }
   // don't try to delete root