ffi: Allocate returned strings using libc.

  - Allocate all returned strings using libc's allocator.  This has
    the advantage that the user can easily use strings and free them
    using free(3).

  - Fixes #157.

1 files changed, 0 insertions, 9 deletions

diff --git a/ffi/src/core.rs b/ffi/src/core.rs
index 609b65f9..88ee0570 100644
--- a/ffi/src/core.rs
+++ b/ffi/src/core.rs
@@ -40,7 +40,6 @@
 
 use failure;
 use std::fs::File;
-use std::ffi::CString;
 use std::io::{self, Read, Write, Cursor};
 use std::path::Path;
 use std::ptr;
@@ -76,14 +75,6 @@ pub extern "system" fn sq_context_last_error(ctx: *mut Context)
     maybe_box_raw!(ctx.e.take())
 }
 
-/// Frees a string returned from Sequoia.
-#[no_mangle]
-pub extern "system" fn sq_string_free(s: *mut c_char) {
-    if ! s.is_null() {
-        unsafe { drop(CString::from_raw(s)) }
-    }
-}
-
 /// Creates a Context with reasonable defaults.
 ///
 /// `domain` should uniquely identify your application, it is strongly