I want to read from one file that has several kinds of data-types. I utilize ifstream (C++ language) but it can\'t read strings.
If I understand correctly, typeid can deter开发者_如何学Gomine the actual type in polymorphism, while typeof cannot.
I have heard the term \"universal type\" thrown around in the context of programming language type systems, does anybody know what this means?Is is som开发者_运维技巧ething to do with objects like a S
I am creating a method that accepts a IOBJECT parameter. there is multiple class that implement this inte开发者_如何学Pythonrface. I need to figure out which type IOBJECT is. how would i go about doin
I\'m currently writing a C extension for ruby as part of a project of mine. The extension is to implement an algorithm I have already working in ruby in C for performance reasons. The question I pose
I have two classes: a base class, Foo::Base and a derived class, Foo::Base::Sub.I want to have Foo::Base::Sub do some type and data checking on the constructor`s argument--a hash--before blessing it.I
I\'m trying to define type like: type aaa = NULL | {a: int; b: int};; But the compiler does not allow to do it. I\'m not sure of the reason why we can\'t mix record type with anything else.
// today is 03 Jan 2009 $datemonth = (int) date(开发者_Go百科\"md\"); if($datemonth == 0103){ echo \"Match\";
I am trying to find some way to relate column types across the the most used Databases: MySQL, PostgreSQL, and SQLite.
I have a MySQL table where rows are inserted dynamically.Because I can not be certain of the length of strings and do not want them cut off, I make them varchar(200) which is general开发者_运维技巧ly
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