Update arc-0200.md

Describe what byte return value for non-readonly methods should be
algorandfoundation · Oct 23, 2023 · 4074609 · 4074609
1 parent 13ce9a1
commit 4074609
Showing 1 changed file with 8 additions and 5 deletions.
diff --git a/ARCs/arc-0200.md b/ARCs/arc-0200.md
@@ -94,7 +94,7 @@ A smart contract token that is compliant with this standard MUST implement the f
           "desc": "Amount of tokens to transfer"
         }
       ],
-      "returns": { "type": "void" }
+      "returns": { "type": "byte", "description": "Success" }
     },
     {
       "name": "arc200_transferFrom",
@@ -117,7 +117,7 @@ A smart contract token that is compliant with this standard MUST implement the f
           "desc": "Amount of tokens to transfer"
         }
       ],
-      "returns": { "type": "void" }
+      "returns": { "type": "byte", "description": "Success" }
     },
     {
       "name": "arc200_approve",
@@ -127,7 +127,7 @@ A smart contract token that is compliant with this standard MUST implement the f
         { "type": "address", "name": "spender" },
         { "type": "uint256", "name": "value" }
       ],
-      "returns": { "type": "void" }
+      "returns": { "type": "byte", "description": "Success" }
     },
     {
       "name": "arc200_allowance",
@@ -189,14 +189,17 @@ A smart contract token that is compliant with this standard MUST implement the f
 
 Ownership of a token by a zero address indicates that a token is out of circulation indefinitely, or otherwise burned or destroyed.
 
-The methods `arc200_transfer` and `arc200_transferFrom` method MUST error when the balance of `from` is insufficient. In the case of the `arc200_transfer` method, from is implied as the `owner` of the token.
-The `arc200_transferFrom` method MUST error unless called by an `spender` approved by an `owner`.
+The methods `arc200_transfer` and `arc200_transferFrom` method MAY error when the balance of `from` is insufficient. In the case of the `arc200_transfer` method, from is implied as the `owner` of the token. 
+The `arc200_transferFrom` method MAY error unless called by an `spender` approved by an `owner`.
 The methods `arc200_transfer` and `arc200_transferFrom` MUST emit a `Transfer` event.
 A `arc200_Transfer` event SHOULD be emitted, with `from` being the zero address, when a token is minted.
 A `arc200_Transfer` event SHOULD be emitted, with `to` being the zero address, when a token is destroyed.
 
 The `arc200_Approval` event MUST be emitted when an `arc200_approve` or `arc200_transferFrom` method is called successfully.
 
+The methods `arc200_transfer` `arc200_transferFrom`, and `arc200_approve` SHOULD return byte `1` on success and byte `0` on failure.
+
+
 A value of zero for the `arc200_approve` method and the `arc200_Approval` event indicates no approval.
 The `arc200_transferFrom` method and the `arc200_Approval` event indicates the approval value after it is decremented.