add required byte length to documentation

bindings/ergo-lib-c-core/src/ext_pub_key.rs

@@ -18,6 +18,8 @@ pub type ExtPubKeyPtr = *mut ExtPubKey;
 pub type ConstExtPubKeyPtr = *const ExtPubKey;
 
 /// Create ExtPubKey from public key bytes, chain code and derivation path
+/// public_key_bytes needs to be the length of PubKeyBytes::LEN (33 bytes)
+/// chain_code needs to be the length of ChainCode::LEN (32 bytes)
 pub unsafe fn ext_pub_key_new(
     public_key_bytes: *const u8,
     chain_code: *const u8,

bindings/ergo-lib-c-core/src/ext_secret_key.rs

@@ -23,6 +23,8 @@ pub type ExtSecretKeyPtr = *mut ExtSecretKey;
 pub type ConstExtSecretKeyPtr = *const ExtSecretKey;
 
 /// Create ExtSecretKey from secret key bytes, chain code and derivation path
+/// secret_key_bytes needs to be the length of SecretKeyBytes::LEN (32 bytes)
+/// chain_code needs to be the length of ChainCode::LEN (32 bytes)
 pub unsafe fn ext_secret_key_new(
     secret_key_bytes: *const u8,
     chain_code: *const u8,

bindings/ergo-lib-c/src/ext_pub_key.rs

@@ -10,6 +10,8 @@ use ergo_lib_c_core::ext_pub_key::{
 use ergo_lib_c_core::Error;
 
 /// Create ExtPubKey from public key bytes, chain code and derivation path
+/// public_key_bytes needs to be the length of PubKeyBytes::LEN (33 bytes)
+/// chain_code_ptr needs to be the length of ChainCode::LEN (32 bytes)
 #[no_mangle]
 pub unsafe extern "C" fn ergo_lib_ext_pub_key_new(
     public_key_bytes: *const u8,

bindings/ergo-lib-c/src/ext_secret_key.rs

@@ -20,6 +20,8 @@ use ergo_lib_c_core::{
 use crate::{delete_ptr, ErrorPtr};
 
 /// Create ExtSecretKey from secret key bytes, chain code and derivation path
+/// secret_key_bytes_ptr needs to be the length of SecretKeyBytes::LEN (32 bytes)
+/// chain_code_ptr needs to be the length of ChainCode::LEN (32 bytes)
 #[no_mangle]
 pub unsafe extern "C" fn ergo_lib_ext_secret_key_new(
     secret_key_bytes_ptr: *const u8,