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Macro wrapper on ctrl_radiobuttons to fill in the NULL.

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ctrl_radiobuttons has a variadic argument list that it expects to be
terminated by a null pointer where a const char * should be. So the
terminating NULL at each call site ought to be cast to const char *,
for the usual reason (NULL might expand literally to something not the
same size as a pointer and get mis-marshalled in the variadic argument
list). It wasn't being.

Fixed in the same way as dupcat: I've turned ctrl_radiobuttons into a
macro wrapper on the underlying function, which adds the NULL
automatically with its correct cast. This also saves verbiage at every
call site, because now I can leave out all the NULLs there.
This commit is contained in:
Simon Tatham
2022-06-01 11:14:21 +01:00
parent 5a28658a6d
commit e0959d4647
4 changed files with 47 additions and 55 deletions
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6
dialog.c
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@ -282,9 +282,9 @@ dlgcontrol *ctrl_combobox(struct controlset *s, const char *label,
* title is expected to be followed by a shortcut _iff_ `shortcut'
* is NO_SHORTCUT.
*/
dlgcontrol *ctrl_radiobuttons(struct controlset *s, const char *label,
char shortcut, int ncolumns, intorptr helpctx,
handler_fn handler, intorptr context, ...)
dlgcontrol *ctrl_radiobuttons_fn(struct controlset *s, const char *label,
char shortcut, int ncolumns, intorptr helpctx,
handler_fn handler, intorptr context, ...)
{
va_list ap;
int i;