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Re: [PATCH] Add a character size parameter to c_strlen/get_range_strlen


On Mon, 20 Aug 2018, Jeff Law wrote:

> > If you do that, probably you want to move 
> > fortran/trans-types.c:get_typenode_from_name (which converts the strings 
> > used in target macros such as WCHAR_TYPE to the corresponding types) into 
> > generic code.
> I think we ultimately have to go down that path.  Or we have to make the
> wchar types language independent.
> 
> My initial fooling around does something like this:
> 
>   count_by = 1;
>   if (dir.specifier == 'S' || dir.modifier == FMT_LEN_l)
>     {
>       tree node = get_identifier (MODIFIED_WCHAR_TYPE);

I expect this get_identifier use may only work properly in C-family 
languages.

(There's another version of that get_typenode_from_name logic in 
tree.c:build_common_tree_nodes for SIZE_TYPE and PTRDIFF_TYPE, which only 
considers types of the right signedness in those cases, but does handle 
__intN types.)

-- 
Joseph S. Myers
joseph@codesourcery.com


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