payload: {"action":"opened","issue":{"url":"https://api.github.com/repos/beltoforion/muparser/issues/65","repository_url":"https://api.github.com/repos/beltoforion/muparser","labels_url":"https://api.github.com/repos/beltoforion/muparser/issues/65/labels{/name}","comments_url":"https://api.github.com/repos/beltoforion/muparser/issues/65/comments","events_url":"https://api.github.com/repos/beltoforion/muparser/issues/65/events","html_url":"https://github.com/beltoforion/muparser/issues/65","id":408370514,"node_id":"MDU6SXNzdWU0MDgzNzA1MTQ=","number":65,"title":"Feature request for strfun_type4 and strfun_type5","user":{"login":"Fabian188","id":33481114,"node_id":"MDQ6VXNlcjMzNDgxMTE0","avatar_url":"https://avatars0.githubusercontent.com/u/33481114?v=4","gravatar_id":"","url":"https://api.github.com/users/Fabian188","html_url":"https://github.com/Fabian188","followers_url":"https://api.github.com/users/Fabian188/followers","following_url":"https://api.github.com/users/Fabian188/following{/other_user}","gists_url":"https://api.github.com/users/Fabian188/gists{/gist_id}","starred_url":"https://api.github.com/users/Fabian188/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Fabian188/subscriptions","organizations_url":"https://api.github.com/users/Fabian188/orgs","repos_url":"https://api.github.com/users/Fabian188/repos","events_url":"https://api.github.com/users/Fabian188/events{/privacy}","received_events_url":"https://api.github.com/users/Fabian188/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2019-02-09T00:08:29Z","updated_at":"2019-02-09T00:08:29Z","closed_at":null,"author_association":"NONE","body":"Hello,\r\n\r\nwe are using muparser happily for many years in our academic software. \r\n\r\nI was not the one who integrated muparser (that guy is no longer available), but I used it. Now I updated to the newest version to make benefit from the cmake features. With 2.2.6.1 I get the regression that two of our callbacks are not compiling any more:\r\n'double (*)(const char*, double, double, double)'\r\nand\r\n'double (*)(const char*, double, double, double, double)'\r\n\r\nA 'double (*)(const char*, double, double)' compiles via \r\nmuParser.h: typedef value_type (*strfun_type3)(const char_type*, value_type, value_type);\r\n\r\nSo I think, there is just an implementation for strfun_type4 and strfun_type5 missing.\r\n\r\nMight it be, that this once existed or is there another way to implement it?\r\n\r\nIf muparser needs to be extended, I assume this is a quick thing for an expert but would be rather involved for me to extend muparser. \r\n\r\nIs there another option (e.g. a hero) who can help me? Otherwise I would try it by myself and either attempt to officially patch muparser or patch it always on our side.\r\n\r\nI don't know about the development community so I better ask.\r\n\r\nThanks!"}}
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