Added table of standard error codes to end of custom error codes topic.

source/mainnet/smart-contracts-v0/guides/custom-errors.rst

@@ -55,3 +55,27 @@ Return custom errors, as you would with any other error type:
        _ctx: &impl HasReceiveContext<()>,
        _state: &mut State,
    ) -> Result<A, MyError> { Err(MyError::ErrTwo) }
+
+Standard error codes
+====================
+
+The following standard error codes exist:
+
+=========================================== ===========================
+Variant                                     Error code
+=========================================== ===========================
+()                                          i32::MIN + 1 (-2147483647)
+ParseError                                  i32::MIN + 2 (-2147483646)
+LogError::Full                              i32::MIN + 3 (-2147483645)
+LogError::Malformed                         i32::MIN + 4 (-2147483644)
+NewContractNameError::MissingInitPrefix     i32::MIN + 5 (-2147483643)
+NewContractNameError::TooLong               i32::MIN + 6 (-2147483642)
+NewContractNameError::ContainsDot           i32::MIN + 9 (-2147483639)
+NewContractNameError::InvalidCharacters     i32::MIN + 10 (-2147483638)
+NewReceiveNameError::MissingDotSeparator    i32::MIN + 7 (-2147483641)
+NewReceiveNameError::TooLong                i32::MIN + 8 (-2147483640)
+NewReceiveNameError::InvalidCharacters      i32::MIN + 11 (-2147483637)
+NotPayableError                             i32::MIN + 12 (-2147483636)
+=========================================== ===========================
+
+The error codes are also listed in `the library documentation on docs.rs <https://docs.rs/concordium-std/2.0.0/concordium_std/index.html#signalling-errors>`_.

source/mainnet/smart-contracts/guides/custom-errors.rst

@@ -63,3 +63,41 @@ Return custom errors, as you would with any other error type:
 
    Adding  :ref:`schemas<build-schema>` to your errors makes them more useful in
    ``concordium-client`` and ``cargo-concordium``.
+
+Standard error codes
+====================
+
+The following standard error codes exist:
+
+=========================================== ===========================
+Variant                                     Error code
+=========================================== ===========================
+()                                          i32::MIN + 1 (-2147483647)
+ParseError                                  i32::MIN + 2 (-2147483646)
+LogError::Full                              i32::MIN + 3 (-2147483645)
+LogError::Malformed                         i32::MIN + 4 (-2147483644)
+NewContractNameError::MissingInitPrefix     i32::MIN + 5 (-2147483643)
+NewContractNameError::TooLong               i32::MIN + 6 (-2147483642)
+NewContractNameError::ContainsDot           i32::MIN + 9 (-2147483639)
+NewContractNameError::InvalidCharacters     i32::MIN + 10 (-2147483638)
+NewReceiveNameError::MissingDotSeparator    i32::MIN + 7 (-2147483641)
+NewReceiveNameError::TooLong                i32::MIN + 8 (-2147483640)
+NewReceiveNameError::InvalidCharacters      i32::MIN + 11 (-2147483637)
+NotPayableError                             i32::MIN + 12 (-2147483636)
+TransferError::AmountTooLarge               i32::MIN + 13 (-2147483635)
+TransferError::MissingAccount               i32::MIN + 14 (-2147483634)
+CallContractError::AmountTooLarge           i32::MIN + 15 (-2147483633)
+CallContractError::MissingAccount           i32::MIN + 16 (-2147483632)
+CallContractError::MissingContract          i32::MIN + 17 (-2147483631)
+CallContractError::MissingEntrypoint        i32::MIN + 18 (-2147483630)
+CallContractError::MessageFailed            i32::MIN + 19 (-2147483629)
+CallContractError::LogicReject              i32::MIN + 20 (-2147483628)
+CallContractError::Trap                     i32::MIN + 21 (-2147483627)
+UpgradeError::MissingModule                 i32::MIN + 22 (-2147483626)
+UpgradeError::MissingContract               i32::MIN + 23 (-2147483625)
+UpgradeError::UnsupportedModuleVersion      i32::MIN + 24 (-2147483624)
+QueryAccountBalanceError                    i32::MIN + 25 (-2147483623)
+QueryContractBalanceError                   i32::MIN + 26 (-2147483622)
+=========================================== ===========================
+
+The error codes are also listed in `the library documentation on docs.rs <https://docs.rs/concordium-std/latest/concordium_std/#signalling-errors>`_.