fix warnings

data-access/engine/src/common/src/fitsfiles.cpp

@@ -217,7 +217,6 @@ int fitsfiles::mod_value(string filename, string token, string keyvalue)
 
    if (!fits_open_file(&fptr, filename.c_str(), iomode, &status))
    {
-      //if (fits_read_card(fptr, keyname.c_str(), card, &status))
       if (fits_read_str(fptr,token.c_str(), card, &status))
       {
          printf("Keyword does not exist\n");
@@ -225,7 +224,6 @@ int fitsfiles::mod_value(string filename, string token, string keyvalue)
          comment[0] = '\0';
          status = 0;  /* reset status after error */
          strcpy(card,token.c_str());
-         //goto f_end;
       }
       else
       {
@@ -267,7 +265,7 @@ int fitsfiles::mod_value(string filename, string token, string keyvalue)
             printf("%s\n",card);
          }
       }
-f_end:
+
       fits_close_file(fptr, &status);
    }
 
@@ -365,7 +363,7 @@ string fitsfiles::append_card_if_not_in_header(string header, const vector<fits_
 // NOT: checks only for _exact_ match on card-key: 'xxxxx____=' ? 'yyyyy____='
 bool is_in_header(string& hdr, string& card)
 {
-	for(int offset=0; offset<hdr.size(); offset+=80)
+	for(string::size_type offset=0; offset<hdr.size(); offset+=80)
 	{
       string hdr_card_key{ hdr.substr(offset,10) };