diff options
Diffstat (limited to 'gdb/value.c')
| -rw-r--r-- | gdb/value.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gdb/value.c b/gdb/value.c index 42a8d2f..edbfc70 100644 --- a/gdb/value.c +++ b/gdb/value.c @@ -3584,6 +3584,23 @@ value_fetch_lazy (struct value *val) return 0; } +/* Implementation of the convenience function $_isvoid. */ + +static struct value * +isvoid_internal_fn (struct gdbarch *gdbarch, + const struct language_defn *language, + void *cookie, int argc, struct value **argv) +{ + int ret; + + if (argc != 1) + error (_("You must provide one parameter for $_isvoid.")); + + ret = TYPE_CODE (value_type (argv[0])) == TYPE_CODE_VOID; + + return value_from_longest (builtin_type (gdbarch)->builtin_int, ret); +} + void _initialize_values (void) { @@ -3616,4 +3633,10 @@ VARIABLE is already initialized.")); add_prefix_cmd ("function", no_class, function_command, _("\ Placeholder command for showing help on convenience functions."), &functionlist, "function ", 0, &cmdlist); + + add_internal_function ("_isvoid", _("\ +Check whether an expression is void.\n\ +Usage: $_isvoid (expression)\n\ +Return 1 if the expression is void, zero otherwise."), + isvoid_internal_fn, NULL); } |