cond-expr.exp   [plain text]

# Copyright 1998, 1999 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

# This file was written by Elena Zannoni (ezannoni@cygnus.com)

# This file is part of the gdb testsuite

#
# test of evaluation of conditional expressions, with constants and 
# variables. Using the print and the whatis command
# written with the only purpose in mind to cover the holes in the
# eval.c file
#
# source file "int-type.c"
#


if $tracelevel then {
        strace $tracelevel
}

# Check to see if we have an executable to test.  If not, then either we
# haven't tried to compile one, or the compilation failed for some reason.
# In either case, just notify the user and skip the tests in this file.

set testfile "int-type"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
    }


gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}


if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

send_gdb "print (2 ? 3 : 4)\n"
gdb_expect {
    -re ".\[0-9\]* = 3.*$gdb_prompt $" {
        pass "print value of cond expr (const true)"
      }
    -re ".*$gdb_prompt $" { fail "print value of cond expr (const true)" }
    timeout           { fail "(timeout) print value of cond expr (const true)" }
  }

send_gdb "print (0 ? 3 : 4)\n"
gdb_expect {
    -re ".\[0-9\]* = 4.*$gdb_prompt $" {
        pass "print value of cond expr (const false)"
      }
    -re ".*$gdb_prompt $" { fail "print value of cond expr (const false)" }
    timeout           { fail "(timeout) print value of cond expr (const false)" }
  }

gdb_test "set variable x=14" "" "set variable x=14"
gdb_test "set variable y=2" "" "set variable y=2"
gdb_test "set variable z=3" "" "set variable z=3"

send_gdb "print (x ? y : z)\n"
gdb_expect {
    -re ".\[0-9\]* = 2.*$gdb_prompt $" {
        pass "print value of cond expr (var true)"
      }
    -re ".*$gdb_prompt $" { fail "print value of cond expr (var true)" }
    timeout           { fail "(timeout) print value of cond expr (var true)" }
  }

gdb_test "set variable x=0" "" "set variable x=0"

send_gdb "print (x ? y : z)\n"
gdb_expect {
    -re ".\[0-9\]* = 3.*$gdb_prompt $" {
        pass "print value of cond expr (var false)"
      }
    -re ".*$gdb_prompt $" { fail "print value of cond expr (var false)" }
    timeout           { fail "(timeout) print value of cond expr (var false)" }
  }


send_gdb "whatis (0 ? 3 : 4)\n"
gdb_expect {
    -re "type = int.*$gdb_prompt $" {
        pass "print whatis of cond expr"
      }
    -re ".*$gdb_prompt $" { fail "print whatis of cond expr" }
    timeout           { fail "(timeout) print whatis of cond expr" }
  }