Re: [Vala] would like to eliminate compilation warning related to stripping whitespace from elements of a string []

[Jonas Kulla <nyocurio gmail com>]

2013/6/21 Reid Thompson <Reid Thompson ateb com>

> how do I implement the following to make the compilation warnings go
> away?
>
> $ cat readMDF.vala
> /*valac --pkg gio-2.0 gio-sample.vala*/
>
>
> int main (string[] args) {
>     // A reference to our file
>     var file = File.new_for_path (args[1]);
>
>     if (!file.query_exists ()) {
>         stderr.printf ("File '%s' doesn't exist.\n", file.get_path ());
>         return 1;
>     }
>
>     try {
>         // Open file for reading and wrap returned FileInputStream into a
>         // DataInputStream, so we can read line by line
>         var dis = new DataInputStream (file.read ());
>         string line;
>         // Read lines until end of file (null) is reached
>         while ((line = dis.read_line (null)) != null) {
> //            stdout.printf ("%s\n", line);
> //            foreach(var field in line.split("|")){
> //                stdout.printf ("%s\n", field);
> //            }
>
>
>
>             var fieldAry = line.split("|");
>             int i = 0;
>             while(i<fieldAry.length){
>                 stdout.printf ("%6d%60s\n", i, fieldAry[i].strip());
>                 i++;
>             }
>
>
> //            foreach(string fl in fieldAry) {
> //                string as = fl.to_string();
> //                stdout.printf ("%60s\n",  as.strip());
> //            }
>
>
>
>         }
>     } catch (Error e) {
>         error ("%s", e.message);
>     }
>
>     return 0;
> }
>
> [16:41:16][0s] rthompso raker2 ateb com> ~
> $ valac --pkg gee-1.0 --pkg gio-2.0 readMDF.vala
> /home/rthompso/readMDF.vala.c: In function ‘string_strip’:
> /home/rthompso/readMDF.vala.c:34:2: warning: passing argument 1 of
> ‘g_strchug’ discards ‘const’ qualifier from pointer target type [enabled by
> default]
> /usr/include/glib-2.0/glib/gstrfuncs.h:177:23: note: expected ‘gchar *’
> but argument is of type ‘const gchar *’
> /home/rthompso/readMDF.vala.c: In function ‘main’:
> /home/rthompso/readMDF.vala.c:186:2: warning: ‘g_type_init’ is deprecated
> (declared at /usr/include/glib-2.0/gobject/gtype.h:669)
> [-Wdeprecated-declarations]
>
> [16:41:22][0s] rthompso raker2 ateb com> ~
> $ ./readMDF ./testPipeFile.txt
>      0                                          No trimming needed
>      1                                          leading whitespace
>      2                                         trailing whitespace
>      3                        both leading and trailing whitespace
>      4
>
> [16:41:26][0s] rthompso raker2 ateb com> ~
> $ cat ./testPipeFile.txt
> No trimming needed|    leading whitespace|trailing whitespace    |   both
> leading and trailing whitespace    |

Hi,

those are long standing bugs in valac itself as far as I know,
and can't be fixed from within the Vala code itself.

Jonas