Function nstd_sys::core::str::nstd_core_str_get

#[no_mangle]
pub unsafe extern "C" fn nstd_core_str_get(
    str: &NSTDStr,
    pos: NSTDUInt
) -> NSTDOptionalUnichar

Available on crate feature nstd_core only.

Gets the NSTDUnichar at index pos in str.

Note

pos does not refer to the byte index of the character, but the NSTDUnichar index instead.

Parameters:

• const NSTDStr *str - The string slice to index.

• NSTDUInt pos - The index of the character to get.

Returns

NSTDOptionalUnichar chr - The character at index pos, or none on error.

Safety

This operation can cause undefined behavior in the event that str’s data is invalid.

Example

use nstd_sys::core::str::{nstd_core_str_from_raw_cstr, nstd_core_str_get};

let s_str = "🦀🚀🦀!\0";
unsafe {
    let str = nstd_core_str_from_raw_cstr(s_str.as_ptr().cast()).unwrap();
    assert!(nstd_core_str_get(&str, 1).unwrap() == '🚀'.into());
}