Function soil_show 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn soil_show(
    runtime: *mut SoilRuntime,
    value: *const Value,
    err: *mut *mut SoilError,
) -> *mut c_char

Canonical JSON of a value — show (design §3.7). Returns an owned NUL-terminated string; free with soil_string_free.

Safety

runtime is live; value is a valid handle; err null or valid.