id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	difficulty
1424	(const c-string) as result type breaks with NULL	Vasilij Schneidermann		"I'm writing bindings to a library which uses `const` on both string argument and return types.  If I declare a foreign function returning `NULL` to have `(const c-string)` as return type, I get a segmentation violation, `c-string` as return type however returns `#f` as expected.

Minimal repro:

{{{#!scheme
(import chicken scheme foreign)

#> static const char* test() { return NULL; } <#

(define test (foreign-lambda c-string ""test""))
(define test2 (foreign-lambda (const c-string) ""test""))

(test) ;=> #f
(test2) ;=> segfault
}}}"	defect	closed	minor	4.13.0	compiler	4.11.0	fixed	foreign