fix warnings on ignored return values

Author: jef-n

src/app/main.cpp

@@ -201,7 +201,7 @@ void myMessageOutput( QtMsgType type, const char *msg )
     {
       fprintf( stderr, "Fatal: %s\n", msg );
 #if defined(linux) && !defined(ANDROID)
-      write( STDERR_FILENO, "Stacktrace (run through c++filt):\n", 34 );
+      ( void ) write( STDERR_FILENO, "Stacktrace (run through c++filt):\n", 34 );
       void *buffer[256];
       int nptrs = backtrace( buffer, sizeof( buffer ) / sizeof( *buffer ) );
       backtrace_symbols_fd( buffer, nptrs, STDERR_FILENO );

src/plugins/grass/qtermwidget/BlockArray.cpp

@@ -211,7 +211,7 @@ bool BlockArray::setHistorySize( size_t newsize )
   else
   {
     decreaseBuffer( newsize );
-    ftruncate( ion, length*blocksize );
+    ( void ) ftruncate( ion, length*blocksize );
     size = newsize;
 
     return true;

src/plugins/grass/qtermwidget/k3process.cpp

@@ -86,8 +86,8 @@ class K3ProcessPrivate
     }
 
     K3Process::Communication usePty;
-    bool addUtmp : 1;
-    bool useShell : 1;
+  bool addUtmp : 1;
+  bool useShell : 1;
 
     KPty *pty;
 
@@ -151,7 +151,7 @@ K3Process::setupEnvironment()
   }
   if ( !d->wd.isEmpty() )
   {
-    chdir( QFile::encodeName( d->wd ).data() );
+    ( void ) chdir( QFile::encodeName( d->wd ).data() );
   }
 }
 
@@ -356,7 +356,7 @@ bool K3Process::start( RunMode runmode, Communication comm )
     execvp( executable, arglist );
 
     char resultByte = 1;
-    write( fd[1], &resultByte, 1 );
+    ( void ) write( fd[1], &resultByte, 1 );
     _exit( -1 );
   }
   else if ( pid_ == -1 )

src/plugins/grass/qtermwidget/k3processcontroller.cpp

@@ -209,7 +209,7 @@ void K3ProcessController::theSigCHLDHandler( int arg )
   int saved_errno = errno;
 
   char dummy = 0;
-  ::write( instance()->d->fd[1], &dummy, 1 );
+  ( void ) ::write( instance()->d->fd[1], &dummy, 1 );
 
 #ifdef Q_OS_UNIX
   if ( Private::oldChildHandlerData.sa_handler != SIG_IGN &&
@@ -243,14 +243,14 @@ K3ProcessController::rescheduleCheck()
   {
     d->needcheck = false;
     char dummy = 0;
-    ::write( d->fd[1], &dummy, 1 );
+    ( void ) ::write( d->fd[1], &dummy, 1 );
   }
 }
 
 void K3ProcessController::slotDoHousekeeping()
 {
   char dummy[16]; // somewhat bigger - just in case several have queued up
-  ::read( d->fd[0], dummy, sizeof( dummy ) );
+  ( void ) ::read( d->fd[0], dummy, sizeof( dummy ) );
 
   int status;
 again:

src/plugins/grass/qtermwidget/kpty.cpp

@@ -248,22 +248,22 @@ bool KPty::open()
     {
       d->ttyName = ptsn;
 #else
-  int ptyno;
-  if ( !ioctl( d->masterFd, TIOCGPTN, &ptyno ) )
-  {
-    d->ttyName = QByteArray( "/dev/pts/" ) + QByteArray::number( ptyno );
+      int ptyno;
+      if ( !ioctl( d->masterFd, TIOCGPTN, &ptyno ) )
+      {
+        d->ttyName = QByteArray( "/dev/pts/" ) + QByteArray::number( ptyno );
 #endif
 #ifdef HAVE_GRANTPT
-      if ( !grantpt( d->masterFd ) )
-        goto grantedpt;
+        if ( !grantpt( d->masterFd ) )
+          goto grantedpt;
 #else
 
-  goto gotpty;
+        goto gotpty;
 #endif
+      }
+      ::close( d->masterFd );
+      d->masterFd = -1;
     }
-    ::close( d->masterFd );
-    d->masterFd = -1;
-  }
 #endif // HAVE_PTSNAME || TIOCGPTN
 
   // Linux device names, FIXME: Trouble on other systems?
@@ -299,8 +299,8 @@ bool KPty::open()
               p = getgrnam( "wheel" );
             gid_t gid = p ? p->gr_gid : getgid();
 
-            chown( d->ttyName.data(), getuid(), gid );
-            chmod( d->ttyName.data(), S_IRUSR | S_IWUSR | S_IWGRP );
+            ( void ) chown( d->ttyName.data(), getuid(), gid );
+            ( void ) chmod( d->ttyName.data(), S_IRUSR | S_IWUSR | S_IWGRP );
           }
           goto gotpty;
         }
@@ -393,7 +393,7 @@ void KPty::close()
       struct stat st;
       if ( !stat( d->ttyName.data(), &st ) )
       {
-        chown( d->ttyName.data(), 0, st.st_gid == getgid() ? 0 : -1 );
+        ( void ) chown( d->ttyName.data(), 0, st.st_gid == getgid() ? 0 : -1 );
         chmod( d->ttyName.data(), S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH );
       }
     }
@@ -556,29 +556,29 @@ void KPty::logout()
   if (( ut = getutxline( &l_struct ) ) )
   {
 #  else
-  utmpname( _PATH_UTMP );
-  setutent();
-  if (( ut = getutline( &l_struct ) ) )
-  {
+    utmpname( _PATH_UTMP );
+    setutent();
+    if (( ut = getutline( &l_struct ) ) )
+    {
 #  endif
-    memset( ut->ut_name, 0, sizeof( *ut->ut_name ) );
-    memset( ut->ut_host, 0, sizeof( *ut->ut_host ) );
+      memset( ut->ut_name, 0, sizeof( *ut->ut_name ) );
+      memset( ut->ut_host, 0, sizeof( *ut->ut_host ) );
 #  ifdef HAVE_STRUCT_UTMP_UT_SYSLEN
-    ut->ut_syslen = 0;
+      ut->ut_syslen = 0;
 #  endif
 #  ifdef HAVE_STRUCT_UTMP_UT_TYPE
-    ut->ut_type = DEAD_PROCESS;
+      ut->ut_type = DEAD_PROCESS;
 #  endif
 #  ifdef HAVE_UTMPX
-    gettimeofday( ut->ut_tv, 0 );
-    pututxline( ut );
-  }
-  endutxent();
+      gettimeofday( ut->ut_tv, 0 );
+      pututxline( ut );
+    }
+    endutxent();
 #  else
-  ut->ut_time = time( 0 );
-  pututline( ut );
-}
-endutent();
+    ut->ut_time = time( 0 );
+    pututline( ut );
+  }
+  endutent();
 #  endif
 # endif
 #endif