{"action":"created","issue":{"url":"https://api.github.com/repos/ethereum/libethereum/issues/174","repository_url":"https://api.github.com/repos/ethereum/libethereum","labels_url":"https://api.github.com/repos/ethereum/libethereum/issues/174/labels{/name}","comments_url":"https://api.github.com/repos/ethereum/libethereum/issues/174/comments","events_url":"https://api.github.com/repos/ethereum/libethereum/issues/174/events","html_url":"https://github.com/ethereum/libethereum/pull/174","id":134859032,"number":174,"title":"Split chain params","user":{"login":"yann300","id":6940742,"avatar_url":"https://avatars.githubusercontent.com/u/6940742?v=3","gravatar_id":"","url":"https://api.github.com/users/yann300","html_url":"https://github.com/yann300","followers_url":"https://api.github.com/users/yann300/followers","following_url":"https://api.github.com/users/yann300/following{/other_user}","gists_url":"https://api.github.com/users/yann300/gists{/gist_id}","starred_url":"https://api.github.com/users/yann300/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/yann300/subscriptions","organizations_url":"https://api.github.com/users/yann300/orgs","repos_url":"https://api.github.com/users/yann300/repos","events_url":"https://api.github.com/users/yann300/events{/privacy}","received_events_url":"https://api.github.com/users/yann300/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/ethereum/libethereum/labels/in%20progress","name":"in progress","color":"e6e6e6"}],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-02-19T12:55:41Z","updated_at":"2016-02-19T13:13:23Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/ethereum/libethereum/pulls/174","html_url":"https://github.com/ethereum/libethereum/pull/174","diff_url":"https://github.com/ethereum/libethereum/pull/174.diff","patch_url":"https://github.com/ethereum/libethereum/pull/174.patch"},"body":"DEPENDS: {\r\n\"webthree\": \"chainParam4\"\r\n}"},"comment":{"url":"https://api.github.com/repos/ethereum/libethereum/issues/comments/186207681","html_url":"https://github.com/ethereum/libethereum/pull/174#issuecomment-186207681","issue_url":"https://api.github.com/repos/ethereum/libethereum/issues/174","id":186207681,"user":{"login":"chriseth","id":9073706,"avatar_url":"https://avatars.githubusercontent.com/u/9073706?v=3","gravatar_id":"","url":"https://api.github.com/users/chriseth","html_url":"https://github.com/chriseth","followers_url":"https://api.github.com/users/chriseth/followers","following_url":"https://api.github.com/users/chriseth/following{/other_user}","gists_url":"https://api.github.com/users/chriseth/gists{/gist_id}","starred_url":"https://api.github.com/users/chriseth/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chriseth/subscriptions","organizations_url":"https://api.github.com/users/chriseth/orgs","repos_url":"https://api.github.com/users/chriseth/repos","events_url":"https://api.github.com/users/chriseth/events{/privacy}","received_events_url":"https://api.github.com/users/chriseth/received_events","type":"User","site_admin":false},"created_at":"2016-02-19T13:13:23Z","updated_at":"2016-02-19T13:13:23Z","body":"Currently, it is not possible to modify ChainParams (apart from its members being public, but that is a different story). Furthermore, if some exception happens inside load* (very likely due to invalid json), the ChainParams object is left in an invalid state. What about creating const functions that return a copy of the current object with the specified changes?"}}