{"Entry":{"collection":"func","key":"set-masklen","name":"set_masklen","aliases":[],"metadata":{"changed_in":["7.4","8.1","8.2"],"changes":[{"descriptions_changed":false,"doc_overhaul":false,"from":"7.1","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"added","to":"7.2"},{"descriptions_changed":false,"doc_overhaul":false,"from":"7.3","group_changed":null,"signatures":{"added":["set_masklen ( inet, integer ) → inet"],"removed":["set_masklen ( inet,integer ) → inet"]},"status":"changed","to":"7.4"},{"descriptions_changed":false,"doc_overhaul":false,"from":"8.0","group_changed":null,"signatures":{"added":["set_masklen ( inet, int ) → inet"],"removed":["set_masklen ( inet, integer ) → inet"]},"status":"changed","to":"8.1"},{"descriptions_changed":false,"doc_overhaul":false,"from":"8.1","group_changed":null,"signatures":{"added":["set_masklen ( cidr, int ) → cidr"],"removed":[]},"status":"changed","to":"8.2"},{"descriptions_changed":false,"doc_overhaul":true,"from":"12","group_changed":null,"signatures":{"added":[],"removed":[]},"status":"changed","to":"13"}],"content_hash":"fd4e09dca6a30a15d0b1d59ef251d0b5cec1b0f9abdebd24c32416d5f09c8461","first_version":"7.2","group":"net","group_label":"Network Address Functions And Operators","groups":["net"],"imported_at":"2026-09-27T17:57:28.686341+08:00","last_version":"20","name":"set_masklen","name_key":"set_masklen","position":11011,"present_in":["7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"signature":"set_masklen ( inet, integer ) → inet","signature_count":2,"slug":"set-masklen","source_rev":"b7bd9cda","summary":"Sets the netmask length for an inet value.","summary_zh":""}},"Definition":{"Collection":"func","Key":"set-masklen","SourceDatabase":"center","Version":"18","SourceTable":"func","SourceKey":"set-masklen","SourceRevision":"b7bd9cda","Facts":{"description":"Sets the netmask length for an inet value. The address part does not change.","description_html":"Sets the netmask length for an \u003ccode class=\"type\"\u003einet\u003c/code\u003e value. The address part does not change.","description_zh":"","description_zh_html":"","doc":{"anchor":"CIDR-INET-FUNCTIONS-TABLE","file":"functions-net.html","slug":"18"},"group":"net","group_label":"Network Address Functions And Operators","lang":"en","layout":"table-new","pages":["functions-net.html"],"prose_only":false,"signatures":[{"description":"Sets the netmask length for an inet value. The address part does not change.","description_html":"Sets the netmask length for an \u003ccode class=\"type\"\u003einet\u003c/code\u003e value. The address part does not change.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_masklen(inet '192.168.1.5/24', 16)","result":"192.168.1.5/16"}],"html":"\u003ccode class=\"function\"\u003eset_masklen\u003c/code\u003e ( \u003ccode class=\"type\"\u003einet\u003c/code\u003e, \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003einet\u003c/code\u003e","returns":"inet","text":"set_masklen ( inet, integer ) → inet","zh_from":""},{"description":"Sets the netmask length for a cidr value. Address bits to the right of the new netmask are set to zero.","description_html":"Sets the netmask length for a \u003ccode class=\"type\"\u003ecidr\u003c/code\u003e value. Address bits to the right of the new netmask are set to zero.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_masklen(cidr '192.168.1.0/24', 16)","result":"192.168.0.0/16"}],"html":"\u003ccode class=\"function\"\u003eset_masklen\u003c/code\u003e ( \u003ccode class=\"type\"\u003ecidr\u003c/code\u003e, \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003ecidr\u003c/code\u003e","returns":"cidr","text":"set_masklen ( cidr, integer ) → cidr","zh_from":""}],"zh_from":""},"ManualEvidence":{"doc":{"anchor":"CIDR-INET-FUNCTIONS-TABLE","file":"functions-net.html","slug":"18"}},"MeasuredEvidence":{}},"Text":{"Collection":"func","Key":"set-masklen","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"set_masklen","Summary":"设置inet值的子网掩码长度。地址部分不改变。","BodyHTML":"设置\u003ccode\u003einet\u003c/code\u003e值的子网掩码长度。地址部分不改变。\u003cpre\u003eset_masklen ( inet, integer ) → inet\u003c/pre\u003e设置\u003ccode\u003einet\u003c/code\u003e值的子网掩码长度。地址部分不改变。\u003cpre\u003eset_masklen ( cidr, integer ) → cidr\u003c/pre\u003e设置\u003ccode\u003ecidr\u003c/code\u003e值的子网掩码长度。新子网掩码右侧的地址位设置为零。","SourceRevision":"ca936764","ContentHash":"6b5f02901d96f6664f197664c70e400b3fae9457ef035d5a33173075d1f77f32","Payload":{"description_zh":"设置inet值的子网掩码长度。地址部分不改变。","description_zh_html":"设置\u003ccode class=\"type\"\u003einet\u003c/code\u003e值的子网掩码长度。地址部分不改变。","signatures":[{"description_zh":"设置inet值的子网掩码长度。地址部分不改变。","description_zh_html":"设置\u003ccode class=\"type\"\u003einet\u003c/code\u003e值的子网掩码长度。地址部分不改变。","returns":"inet","text":"set_masklen ( inet, integer ) → inet","zh_from":"doc"},{"description_zh":"设置cidr值的子网掩码长度。新子网掩码右侧的地址位设置为零。","description_zh_html":"设置\u003ccode class=\"type\"\u003ecidr\u003c/code\u003e值的子网掩码长度。新子网掩码右侧的地址位设置为零。","returns":"cidr","text":"set_masklen ( cidr, integer ) → cidr","zh_from":"doc"}],"zh_from":"doc"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","7.2","7.3","7.4","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":[{"Version":"18","Ordinal":0,"Hash":"a53077faa1106d1282ffce56dbfc01d4f7d6dc2e19cf96e4530f5a1285c681ea","Text":"set_masklen ( inet, integer ) → inet","Returns":"inet","Payload":{"description":"Sets the netmask length for an inet value. The address part does not change.","description_html":"Sets the netmask length for an \u003ccode class=\"type\"\u003einet\u003c/code\u003e value. The address part does not change.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_masklen(inet '192.168.1.5/24', 16)","result":"192.168.1.5/16"}],"html":"\u003ccode class=\"function\"\u003eset_masklen\u003c/code\u003e ( \u003ccode class=\"type\"\u003einet\u003c/code\u003e, \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003einet\u003c/code\u003e","returns":"inet","text":"set_masklen ( inet, integer ) → inet","zh_from":""}},{"Version":"18","Ordinal":1,"Hash":"b8f2b80659f11ca383bdd1735edd12e309f453333cbf26d37f93bfc36e421266","Text":"set_masklen ( cidr, integer ) → cidr","Returns":"cidr","Payload":{"description":"Sets the netmask length for a cidr value. Address bits to the right of the new netmask are set to zero.","description_html":"Sets the netmask length for a \u003ccode class=\"type\"\u003ecidr\u003c/code\u003e value. Address bits to the right of the new netmask are set to zero.","description_zh":"","description_zh_html":"","examples":[{"expr":"set_masklen(cidr '192.168.1.0/24', 16)","result":"192.168.0.0/16"}],"html":"\u003ccode class=\"function\"\u003eset_masklen\u003c/code\u003e ( \u003ccode class=\"type\"\u003ecidr\u003c/code\u003e, \u003ccode class=\"type\"\u003einteger\u003c/code\u003e ) → \u003ccode class=\"returnvalue\"\u003ecidr\u003c/code\u003e","returns":"cidr","text":"set_masklen ( cidr, integer ) → cidr","zh_from":""}}],"Spellings":null,"SQLState":null,"Evidence":null}