41f1b6975d
pass and return by reference. * cp-abi.c (cp_pass_by_reference): New. * cp-abi.h (cp_pass_by_reference): Declare. (struct cp_abi_ops): Add pass_by_reference. * gnu-v3-abi.c (gnuv3_pass_by_reference): New. (init_gnuv3_ops): Set pass_by_reference. * language.c (language_pass_by_reference): New. (default_pass_by_reference): New. (unknown_language_defn, auto_language_defn, local_language_defn): Add default_pass_by_reference. * langauge.h (struct language_defn): Add la_pass_by_reference. (language_pass_by_reference, default_pass_by_reference): Declare. * ada-lang.c (ada_language_defn): Add default_pass_by_reference. * c-lang.c (c_language_defn, asm_language_defn) (minimal_language_defn): Likewise. (cplus_language_defn): Add cp_pass_by_reference. * f-lang.c (f_language_defn): Add default_pass_by_reference. * jv-lang.c (java_language_defn): Likewise. * m2-lang.c (m2_language_defn): Likewise. * objc-lang.c (objc_language_defn): Likewise. * p-lang.c (pascal_language_defn): Likewise. * scm-lang.c (scm_language_defn): Likewise * gdb.cp/pass-by-ref.cc, gdb.cp/pass-by-ref.exp: New files.
79 lines
1.4 KiB
C++
79 lines
1.4 KiB
C++
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2007 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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class Obj {
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public:
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Obj ();
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Obj (const Obj &);
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~Obj ();
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int var[2];
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};
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int foo (Obj arg)
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{
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return arg.var[0] + arg.var[1];
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}
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Obj::Obj ()
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{
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var[0] = 1;
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var[1] = 2;
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}
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Obj::Obj (const Obj &obj)
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{
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var[0] = obj.var[0];
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var[1] = obj.var[1];
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}
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Obj::~Obj ()
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{
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}
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struct Derived : public Obj
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{
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int other;
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};
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int blap (Derived arg)
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{
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return foo (arg);
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}
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struct Container
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{
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Obj obj;
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};
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int blip (Container arg)
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{
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return foo (arg.obj);
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}
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Obj global_obj;
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Derived global_derived;
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Container global_container;
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int
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main ()
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{
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int bar = foo (global_obj);
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blap (global_derived);
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blip (global_container);
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return bar;
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}
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