diff options
| -rw-r--r-- | doc/tutorial-ffi.md | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/doc/tutorial-ffi.md b/doc/tutorial-ffi.md index 278273b1671..e3c1c489444 100644 --- a/doc/tutorial-ffi.md +++ b/doc/tutorial-ffi.md @@ -445,9 +445,8 @@ prefer using raw pointers (`*`) if that's needed because the compiler can't make about them. Vectors and strings share the same basic memory layout, and utilities are available in the `vec` and -`str` modules for working with C APIs. Strings are terminated with `\0` for interoperability with C, -but it should not be assumed because a slice will not always be nul-terminated. Instead, the -`str::as_c_str` function should be used. +`str` modules for working with C APIs. However, strings are not terminated with `\0`. If you need a +NUL-terminated string for interoperability with C, you should use the `c_str::to_c_str` function. The standard library includes type aliases and function definitions for the C standard library in the `libc` module, and Rust links against `libc` and `libm` by default. |