maint: Use convention 'void * fcn ()' for functions which return pointers. * make_int.cc, dialog.h, file-editor-interface.h, file-editor-tab.h, file-editor.h, octave-txt-lexer.h, main-window.h, octave-dock-widget.h, parser.h, webinfo.h, resource-manager.h, thread-manager.h, c-file-ptr-stream.h, call-stack.h, comment-list.h, ft-text-renderer.h, gl-render.cc, input.h, mex.cc, mexproto.h, mxarray.in.h, oct-fstrm.h, oct-iostrm.h, oct-procbuf.h, oct-stdstrm.h, oct-stream.cc, oct-stream.h, oct-strstrm.h, octave-link.h, sighandlers.cc, symtab.h, sysdep.h, utils.h, audiodevinfo.cc, ov-base-diag.h, ov-base-int.h, ov-base-scalar.h, ov-base-sparse.h, ov-base.h, ov-bool-mat.h, ov-bool-sparse.h, ov-bool.h, ov-builtin.h, ov-cell.h, ov-ch-mat.h, ov-class.h, ov-classdef.h, ov-colon.h, ov-complex.cc, ov-complex.h, ov-cs-list.h, ov-cx-diag.h, ov-cx-mat.h, ov-cx-sparse.h, ov-fcn-handle.h, ov-fcn-inline.h, ov-fcn.h, ov-float.h, ov-flt-complex.h, ov-flt-cx-diag.h, ov-flt-cx-mat.h, ov-flt-re-diag.h, ov-flt-re-mat.h, ov-intx.h, ov-java.cc, ov-java.h, ov-lazy-idx.h, ov-mex-fcn.h, ov-oncleanup.h, ov-perm.h, ov-range.h, ov-re-diag.h, ov-re-mat.h, ov-re-sparse.h, ov-scalar.h, ov-str-mat.h, ov-struct.h, ov-usr-fcn.h, ov.h, octave.h, bp-table.h, jit-ir.h, jit-typeinfo.h, jit-util.h, lex.h, parse.h, pt-arg-list.h, pt-array-list.h, pt-assign.h, pt-binop.h, pt-cell.h, pt-classdef.h, pt-cmd.h, pt-colon.h, pt-const.h, pt-decl.h, pt-except.h, pt-exp.h, pt-fcn-handle.h, pt-funcall.h, pt-id.h, pt-idx.h, pt-jit.h, pt-jump.h, pt-loop.h, pt-mat.h, pt-misc.h, pt-select.h, pt-stmt.h, pt-unop.h, token.h, Array.cc, Array.h, DiagArray2.h, Sparse.h, dim-vector.h, idx-vector.h, sparse-chol.cc, cmd-edit.cc, cmd-edit.h, lo-array-errwarn.cc, lo-array-errwarn.h, lo-array-gripes.cc, lo-utils.h, oct-inttypes.h, oct-locbuf.h, oct-refcount.h, oct-rl-edit.h, oct-rl-hist.h, oct-shlib.cc, oct-shlib.h, str-vec.h, canonicalize-file-name-wrapper.h, dirent-wrappers.h, getopt-wrapper.h, glob-wrappers.h, localcharset-wrapper.h, set-program-name-wrapper.h, signal-wrappers.h, strdup-wrapper.h, tmpfile-wrapper.h, unistd-wrappers.h, display-available.h: Use convention 'void * fcn ()' for functions which return pointers.

--- a/liboctave/util/oct-shlib.cc	Thu Apr 27 12:31:17 2017 -0400
+++ b/liboctave/util/oct-shlib.cc	Thu Apr 27 09:48:57 2017 -0700
@@ -42,9 +42,9 @@
 #  if defined (HAVE_DLFCN_H)
 #    include <dlfcn.h>
 #  else
-extern void *dlopen (const char *, int);
-extern const char *dlerror (void);
-extern void *dlsym (void *, const char *);
+extern void * dlopen (const char *, int);
+extern const char * dlerror (void);
+extern void * dlsym (void *, const char *);
 extern int dlclose (void *);
 #  endif
 #elif defined (HAVE_SHL_LOAD_API)
@@ -172,8 +172,8 @@
 
     ~octave_dlopen_shlib (void);
 
-    void *search (const std::string& name,
-                  dynamic_library::name_mangler mangler = 0);
+    void * search (const std::string& name,
+                   dynamic_library::name_mangler mangler = 0);
 
     // FIXME: this is possibly redundant because failure to open a library will
     // normally throw an exception, avoiding the construction of an invalid
@@ -263,8 +263,8 @@
 
     ~octave_shl_load_shlib (void);
 
-    void *search (const std::string& name,
-                  dynamic_library::name_mangler mangler = 0);
+    void * search (const std::string& name,
+                   dynamic_library::name_mangler mangler = 0);
 
     bool is_open (void) const { return (library != 0); }
 
@@ -331,8 +331,8 @@
 
     ~octave_w32_shlib (void);
 
-    void *search (const std::string& name,
-                  dynamic_library::name_mangler mangler = 0);
+    void * search (const std::string& name,
+                   dynamic_library::name_mangler mangler = 0);
 
     bool is_open (void) const { return (handle != 0); }
 
@@ -432,8 +432,8 @@
 
     void open (const std::string& f);
 
-    void *search (const std::string& name,
-                  dynamic_library::name_mangler mangler = 0);
+    void * search (const std::string& name,
+                   dynamic_library::name_mangler mangler = 0);
 
     void close (dynamic_library::close_hook cl_hook = 0);