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Don't assume that short is shorter than int.

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* gdb.base/exprs.exp ("print unsigned short == (~0)"): Don't
assume that shorts are smaller than ints.  On a 16-bit machine,
this isn't true.
("print unsigned char == (~0)"): Add test that verifies that ~0,
an int, is not equal to ~0 stored in an unsigned char.  This tests
the same thing that the previous test meant to, but works on
16-bit machines, too.
("print unsigned char != (~0)"): Same test, complemented.
This commit is contained in:
Jim Blandy
2001-05-25 00:01:29 +00:00
parent b58c9faf2f
commit 400071f14b
2 changed files with 15 additions and 3 deletions
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6
gdb/testsuite/gdb.base/exprs.exp
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@@ -101,11 +101,11 @@ test_expr "set variable v_unsigned_char=127" "print v_unsigned_char > 0" "\\$\[0
# FIXME: gdb mishandles the cast (unsigned char) on the i960, so I've
# set up an expected failure for this case.
setup_xfail "i960-*-*" 1821
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char == 0" "\\$\[0-9\]* = $false" "print v_unsigned_char == ~0" "\\$\[0-9\]* = $false" "print v_unsigned_char == (unsigned char)~0" "\\$\[0-9\]* = $true" "print unsigned char == (~0)"
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char == 0" "\\$\[0-9\]* = $false" "print v_unsigned_char == ~0" "\\$\[0-9\]* = $false" "print v_unsigned_char == (unsigned char)~0" "\\$\[0-9\]* = $true" "print v_unsigned_char == ~0" "\\$\[0-9\]* = $false" "print unsigned char == (~0)"
# FIXME: gdb mishandles the cast (unsigned char) on the i960, so I've
# set up an expected failure for this case.
setup_xfail "i960-*-*" 1821
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char != 0" "\\$\[0-9\]* = $true" "print v_unsigned_char != (unsigned char)~0" "\\$\[0-9\]* = $false" "print unsigned char != (~0)"
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char != 0" "\\$\[0-9\]* = $true" "print v_unsigned_char != (unsigned char)~0" "\\$\[0-9\]* = $false" "print v_unsigned_char != ~0" "\\$\[0-9\]* = $true" "print unsigned char != (~0)"
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char < 0" "\\$\[0-9\]* = $false" "print v_unsigned_char < 127" "\\$\[0-9\]* = $false" "print unsigned char < (~0)"
test_expr "set variable v_unsigned_char=~0" "print v_unsigned_char > 0" "\\$\[0-9\]* = $true" "print v_unsigned_char > 127" "\\$\[0-9\]* = $true" "print unsigned char > (~0)"
#
@@ -140,7 +140,7 @@ test_expr "set variable v_unsigned_short=0x7FFF" "print v_unsigned_short != 0" "
test_expr "set variable v_unsigned_short=0x7FFF" "print v_unsigned_short < 0" "\\$\[0-9\]* = $false" "print v_unsigned_short < 0x7FFF" "\\$\[0-9\]* = $false" "print unsigned short <"
test_expr "set variable v_unsigned_short=0x7FFF" "print v_unsigned_short > 0" "\\$\[0-9\]* = $true" "print v_unsigned_short > 0x7FFF" "\\$\[0-9\]* = $false" "print unsigned short >"
# make short a minus
test_expr "set variable v_unsigned_short=~0" "print v_unsigned_short == 0" "\\$\[0-9\]* = $false" "print v_unsigned_short == ~0" "\\$\[0-9\]* = $false" "print v_unsigned_short == (unsigned short)~0" "\\$\[0-9\]* = $true" "print unsigned short == (~0)"
test_expr "set variable v_unsigned_short=~0" "print v_unsigned_short == 0" "\\$\[0-9\]* = $false" "print sizeof (v_unsigned_short) < sizeof (~0) && v_unsigned_short == ~0" "\\$\[0-9\]* = $false" "print v_unsigned_short == (unsigned short)~0" "\\$\[0-9\]* = $true" "print unsigned short == (~0)"
test_expr "set variable v_unsigned_short=~0" "print v_unsigned_short != 0" "\\$\[0-9\]* = $true" "print v_unsigned_short != (unsigned short)~0" "\\$\[0-9\]* = $false" "print unsigned short != (~0)"
test_expr "set variable v_unsigned_short=~0" "print v_unsigned_short < 0" "\\$\[0-9\]* = $false" "print v_unsigned_short < 0x7FFF" "\\$\[0-9\]* = $false" "print unsigned short < (~0)"
test_expr "set variable v_unsigned_short=~0" "print v_unsigned_short > 0" "\\$\[0-9\]* = $true" "print v_unsigned_short > 0x7FFF" "\\$\[0-9\]* = $true" "print unsigned short > (~0)"