pyo3::ffi

Macro c_str

source
macro_rules! c_str {
    ($s:expr) => { ... };
}
Expand description

This is a helper macro to create a &'static CStr.

It can be used on all Rust versions supported by PyO3, unlike cā€œā€œ literals which were stabilised in Rust 1.77.

Due to the nature of PyO3 making heavy use of C FFI interop with Python, it is common for PyO3 to use CStr.

Examples:

use std::ffi::CStr;

const HELLO: &CStr = pyo3_ffi::c_str!("hello");
static WORLD: &CStr = pyo3_ffi::c_str!("world");