1! { dg-do compile }
2! { dg-options "-Wc-binding-type" }
3! { dg-require-visibility "" }
4! This should compile, though there is a warning about the type of len
5! (return variable of strlen()) for being implicit.
6! PR fortran/32797
7!
8MODULE ISO_C_UTILITIES
9   USE ISO_C_BINDING
10   implicit none
11   CHARACTER(C_CHAR), DIMENSION(1), SAVE, TARGET, PRIVATE :: dummy_string="?"
12CONTAINS
13   FUNCTION C_F_STRING(CPTR) RESULT(FPTR)
14     use, intrinsic :: iso_c_binding
15      TYPE(C_PTR), INTENT(IN) :: CPTR ! The C address
16      CHARACTER(KIND=C_CHAR), DIMENSION(:), POINTER :: FPTR
17      INTERFACE
18         FUNCTION strlen(string) RESULT(len) BIND(C,NAME="strlen") ! { dg-warning "Implicitly declared" }
19            USE ISO_C_BINDING
20            TYPE(C_PTR), VALUE :: string ! A C pointer
21         END FUNCTION
22      END INTERFACE
23      CALL C_F_POINTER(FPTR=FPTR, CPTR=CPTR, SHAPE=[strlen(CPTR)])
24   END FUNCTION
25END MODULE ISO_C_UTILITIES
26