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| author | Hannes Domani <ssbssa@yahoo.de> | 2020-03-31 14:49:06 +0200 |
|---|---|---|
| committer | Hannes Domani <ssbssa@yahoo.de> | 2020-04-01 19:15:03 +0200 |
| commit | 60e22c1eacb0df32aeeeb78c53cfd46c53a3770f (patch) | |
| tree | e9870fa9aee3159d44e48cffce61f0d85abf8318 /gdb/testsuite | |
| parent | 77bf7b5317195e092a9f18fef993c412e2e05f53 (diff) | |
| download | gdb-60e22c1eacb0df32aeeeb78c53cfd46c53a3770f.zip gdb-60e22c1eacb0df32aeeeb78c53cfd46c53a3770f.tar.gz gdb-60e22c1eacb0df32aeeeb78c53cfd46c53a3770f.tar.bz2 | |
Allow pointer arithmetic with integer references
Considering these variables:
int i = 3;
int &iref = i;
It's not possible to do any pointer arithmetic with iref:
(gdb) p &i+iref
Argument to arithmetic operation not a number or boolean.
So this adds checks for references to integers in pointer arithmetic.
gdb/ChangeLog:
2020-04-01 Hannes Domani <ssbssa@yahoo.de>
PR gdb/24789
* eval.c (is_integral_or_integral_reference): New function.
(evaluate_subexp_standard): Allow integer references in
pointer arithmetic.
gdb/testsuite/ChangeLog:
2020-04-01 Hannes Domani <ssbssa@yahoo.de>
PR gdb/24789
* gdb.cp/misc.cc: Add integer reference variable.
* gdb.cp/misc.exp: Add test.
Diffstat (limited to 'gdb/testsuite')
| -rw-r--r-- | gdb/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.cp/misc.cc | 3 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.cp/misc.exp | 8 |
3 files changed, 17 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index cc2335e..58271cf 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2020-04-01 Hannes Domani <ssbssa@yahoo.de> + + PR gdb/24789 + * gdb.cp/misc.cc: Add integer reference variable. + * gdb.cp/misc.exp: Add test. + 2020-04-01 Tankut Baris Aktemur <tankut.baris.aktemur@intel.com> * gdb.server/stop-reply-no-thread.exp: Enhance the test diff --git a/gdb/testsuite/gdb.cp/misc.cc b/gdb/testsuite/gdb.cp/misc.cc index d461d6d..41fb9d2 100644 --- a/gdb/testsuite/gdb.cp/misc.cc +++ b/gdb/testsuite/gdb.cp/misc.cc @@ -24,6 +24,9 @@ bool v_bool_array[2]; typedef struct fleep fleep; struct fleep { int a; } s; +int number; +int &number_ref = number; + // ====================== simple class structures ======================= struct default_public_struct { diff --git a/gdb/testsuite/gdb.cp/misc.exp b/gdb/testsuite/gdb.cp/misc.exp index bceb73e..cd6f0f7 100644 --- a/gdb/testsuite/gdb.cp/misc.exp +++ b/gdb/testsuite/gdb.cp/misc.exp @@ -110,3 +110,11 @@ gdb_test "print (int)false" "\\$\[0-9\]* = 0" "(int)false" gdb_test "print 'misc.cc'::v_bool" " = true" \ "expression using block qualifier" + +# pointer arithmetic +gdb_test "print *(v_bool_array + number_ref)" "\\$\[0-9\]* = false" \ + "pointer addition with integer reference" +gdb_test "print *(number_ref + v_bool_array)" "\\$\[0-9\]* = false" \ + "pointer addition with integer reference" +gdb_test "print *(v_bool_array - number_ref)" "\\$\[0-9\]* = false" \ + "pointer subtraction with integer reference" |