built-in-types

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use type() information to cast values stored as strings

In my application I have generated a number of values (three columns, of type int, str and datetime, see example below) and these values are stored in a flat file as comma-separated strings. Furthermo[详细]

2023-04-04 18:17 分类：问答
Python: Inheriting builtin types dict and list [closed]

开发者_运维问答 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form.[详细]

2023-03-07 01:06 分类：问答
Cannot assign the value of INT_MIN to a long long

signed long long value = -2147483648; cout << ((signed long long)valu开发者_开发百科e); outputs 2147483648 (no minus sign), why?signed long long value = -2147483648;[详细]

2023-02-22 01:32 分类：问答
0 initialization of C++ built-in types

suppose I have this struct (or class, my question applies to both): struct builtin { int a; int b; builtin() : a(), b(0) { }[详细]

2023-02-16 14:12 分类：问答
Inheriting behaviours for set and frozenset seem to differ

Can someone e开发者_StackOverflow中文版xplain the following behaviour: class derivedset1(frozenset):[详细]

2023-02-07 11:40 分类：问答
How to default-initialize local variables of built-in types in C++?

How do I default-initialize a local variable of primitive type in C++? For example if a have a typedef:[详细]

2022-12-26 08:48 分类：问答
What is the difference between isinstance('aaa', basestring) and isinstance('aaa', str)?

a=\'aaaa\' print isinstance(a, basestring)#true print isinsta开发者_开发百科nce(a, str)#true In Python versions prior to 3.0 there are two kinds of strings \"plain strings\" and \"unicode strings\". P[详细]

2022-12-15 06:02 分类：问答
Do types in QT applications for different platforms have similar size?

I created an application for Windows in C++ using QT. If I want to por开发者_运维百科t it to Linux or Mac OS, will sizeof(int) or sizeof(long) change? In other words, do types in QT applications for d[详细]

2022-12-11 23:45 分类：问答