gdb/testsuite/gdb.cp/misc.exp

   1 # Copyright 1992-2020 Free Software Foundation, Inc.
   2
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file was written by Fred Fish. (fnf@cygnus.com)
  17
  18 if { [skip_cplus_tests] } { continue }
  19
  20 standard_testfile .cc
  21
  22 if {[prepare_for_testing "failed to prepare" $testfile $srcfile \
  23          {debug c++ additional_flags=-Wno-deprecated-register}]} {
  24     return -1
  25 }
  26
  27 #
  28 # Deduce language of main()
  29 #
  30
  31 proc deduce_language_of_main {} {
  32     global gdb_prompt
  33
  34     # See what language gdb thinks main() is, prior to reading full symbols.
  35     # I think this fails for COFF targets.
  36     gdb_test "show language" \
  37         "source language is \"auto; currently c\[+\]+\".*" \
  38         "deduced language is C++, before full symbols"
  39
  40     runto_main
  41
  42     # See if our idea of the language has changed.
  43
  44     gdb_test "show language" \
  45         "source language is \"auto; currently c\[+\]+\".*" \
  46         "deduced language is C++, after full symbols"
  47 }
  48
  49 proc test_expr { args } {
  50     if { [llength $args] % 2 } {
  51         warning "an even # of arguments should be passed to test_expr"
  52     }
  53     set last_ent [expr [llength $args] - 1]
  54     set testname [lindex $args $last_ent]
  55     if [gdb_test_no_output [lindex $args 0] "$testname (setup)"] {
  56         gdb_suppress_tests
  57     }
  58     for {set x 1} {$x < $last_ent} {set x [expr $x + 2]} {
  59         if [gdb_test [lindex $args $x] [lindex $args [expr $x + 1]] "$testname ([lindex $args $x])"] {
  60             gdb_suppress_tests
  61         }
  62     }
  63     gdb_stop_suppressing_tests
  64 }
  65
  66 proc do_tests {} {
  67     deduce_language_of_main
  68     # Check for fixes for PRs 8916 and 8630
  69     gdb_test "print s.a" ".* = 0" "print s.a for foo struct (known gcc 2.7.2 and earlier bug)"
  70 }
  71
  72 do_tests
  73
  74 test_expr "set language c++" \
  75     "print 1 == 1" "print.*\\$\[0-9\]* = true" \
  76     "print 1 == 2" "print.*\\$\[0-9\]* = false" \
  77     "print as bool"
  78
  79 # Test bool type printing, etc.
  80 # Note: Language is already set to C++ above!
  81 gdb_test "print v_bool" "\\$\[0-9\]* = false" "print a bool var"
  82
  83 # set a bool variable
  84 test_expr "set variable v_bool = true" \
  85     "print v_bool" "\\$\[0-9\]* = true" \
  86     "set a bool var"
  87
  88 # next print an array of bool
  89 gdb_test "print v_bool_array" "\\$\[0-9\]* = \\{false, false\\}" "print a bool array"
  90
  91 # set elements of a bool array
  92 test_expr "set variable v_bool_array\[1\] = true" \
  93     "print v_bool_array" "\\$\[0-9\]* = \\{false, true\\}" \
  94     "set a bool array elem"
  95
  96 # bool constants
  97 gdb_test "print true" "\\$\[0-9\]* = true"
  98 gdb_test "print false" "\\$\[0-9\]* = false"
  99
 100 # arithmetic conversions
 101 gdb_test "print 1 + true" "\\$\[0-9\]* = 2" "1 + true"
 102 gdb_test "print 3 + false" "\\$\[0-9\]* = 3" "3 + false"
 103 gdb_test "print 1 < 2 < 3" "\\$\[0-9\]* = true" "1 < 2 < 3"
 104 gdb_test "print 2 < 1 > 4" "\\$\[0-9\]* = false" "2 < 1 > 4"
 105 gdb_test "print (bool)43" "\\$\[0-9\]* = true" "(bool)43"
 106 gdb_test "print (bool)0" "\\$\[0-9\]* = false" "(bool)0"
 107 gdb_test "print (bool)17.93" "\\$\[0-9\]* = true" "(bool)17.93"
 108 gdb_test "print (bool)0.0" "\\$\[0-9\]* = false" "(bool)0.0"
 109 gdb_test "print (int)true" "\\$\[0-9\]* = 1" "(int)true"
 110 gdb_test "print (int)false" "\\$\[0-9\]* = 0" "(int)false"
 111
 112 gdb_test "print 'misc.cc'::v_bool" " = true" \
 113     "expression using block qualifier"
 114
 115 # pointer arithmetic
 116 gdb_test "print *(v_bool_array + number_ref)" "\\$\[0-9\]* = false" \
 117     "pointer addition with integer reference"
 118 gdb_test "print *(number_ref + v_bool_array)" "\\$\[0-9\]* = false" \
 119     "pointer addition with integer reference"
 120 gdb_test "print *(v_bool_array - number_ref)" "\\$\[0-9\]* = false" \
 121     "pointer subtraction with integer reference"