Function esp_idf_svc::sys::mbedtls_md_finish

pub unsafe extern "C" fn mbedtls_md_finish(
    ctx: *mut mbedtls_md_context_t,
    output: *mut u8,
) -> i32

\brief This function finishes the digest operation, and writes the result to the output buffer.

             Call this function after a call to mbedtls_md_starts(),
             followed by any number of calls to mbedtls_md_update().
             Afterwards, you may either clear the context with
             mbedtls_md_free(), or call mbedtls_md_starts() to reuse
             the context for another digest operation with the same
             algorithm.

\param ctx The generic message-digest context. \param output The buffer for the generic message-digest checksum result.

\return \c 0 on success. \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification failure.