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[RFA/testsuite] Complex numbers in C
- From: Daniel Jacobowitz <drow at mvista dot com>
- To: gdb-patches at sources dot redhat dot com
- Date: Wed, 20 Mar 2002 19:36:44 -0500
- Subject: [RFA/testsuite] Complex numbers in C
Here's a test for the bug I just fixed. It's got one caveat: I could not,
no matter how I searched, find a way to make DejaGNU be quiet if a test
fails to compile. This adds one line of gcc error message to the testsuite
output if the test didn't build (non-GCC-and-non-C99 compiler will do it,
probably).
Other caveat was that I don't remember if we agreed to use unsupported in
this case or not.
[As a side note, I'm trying to design a gcc.dg-like framework for GDB. I
shouldn't need to write TCL for a test this simple, with a small testcase,
and there are a lot of this sort of test that we could use.]
--
Daniel Jacobowitz Carnegie Mellon University
MontaVista Software Debian GNU/Linux Developer
2002-03-20 Daniel Jacobowitz <drow@mvista.com>
* gdb.base/complex.c: New file.
* gdb.base/complex.exp: New file.
--- /dev/null Wed Dec 31 19:00:00 1969
+++ gdb/testsuite/gdb.base/complex.c Wed Mar 20 19:30:16 2002
@@ -0,0 +1,29 @@
+/* Test taken from GCC. Verify that we can print a structure containing
+ a complex number. */
+
+typedef __complex__ float cf;
+struct x { char c; cf f; } __attribute__ ((__packed__));
+extern void f2 (struct x*);
+extern void f1 (void);
+int
+main (void)
+{
+ f1 ();
+ exit (0);
+}
+
+void
+f1 (void)
+{
+ struct x s;
+ s.f = 1;
+ s.c = 42;
+ f2 (&s);
+}
+
+void
+f2 (struct x *y)
+{
+ if (y->f != 1 || y->c != 42)
+ abort ();
+}
--- /dev/null Wed Dec 31 19:00:00 1969
+++ gdb/testsuite/gdb.base/complex.exp Wed Mar 20 19:32:32 2002
@@ -0,0 +1,49 @@
+# Copyright 2002 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# Please email any bugs, comments, and/or additions to this file to:
+# bug-gdb@prep.ai.mit.edu
+
+if $tracelevel then {
+ strace $tracelevel
+}
+
+set bug_id 0
+
+set testfile complex
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${testfile}
+set options debug
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable $options] != "" } {
+ # No support for __complex__, presumably.
+ unsupported "print complex value in C"
+ return 0
+}
+
+# Start with a fresh gdb.
+
+gdb_exit
+gdb_start
+gdb_reinitialize_dir $srcdir/$subdir
+gdb_load $binfile
+
+if [runto f2] then {
+ gdb_test "p *y" "\\\$\[0-9\]* = \{c = 42 '\\*', f = 1 \\+ 0 \\* I\}" \
+ "print complex value in C"
+}
+
+return 0