使用ghc的类型类专门化
HowcanImakethegenOut/Stringfire?如何使genOut/String激活?moduleIOStreamwhereimportSystem.IOimportSystem.IO.UnsafeclassOutawhereout::a→StringinstanceShowa⇒Ou...
HowcanImakethegenOut/Stringfire?如何使genOut/String激活?moduleIOStreamwhereimportSystem.IOimportSystem.IO.UnsafeclassOutawhereout::a→StringinstanceShowa⇒Ou...