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Are static class variables possible in Python?
...4
>>> MyClass.i, m.i
>>> (3, 4)
This is different from C++ and Java, but not so different from C#, where a static member can't be accessed using a reference to an instance.
See what the Python tutorial has to say on the subject of classes and class objects.
@Steve Johnson has a...
How to convert an xml string to a dictionary?
...: '1', 'c': 'three', 'b': '2.2'}}
There are tools for converting in both C++ and Python: the C++ and Python do indentical conversion, but the C++ is about 60x faster
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How to convert string to char array in C++?
... he created is the same thing as a char array. An array variable in C and C++ is just a pointer to the first element in the array.
– JustinCB
Jun 1 '17 at 17:39
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With arrays, why is it the case that a[5] == 5[a]?
...ve integer type.
in which case both i + p and i[p] would be illegal.
In C++ terms, we really have two sets of overloaded + operators, which can be loosely described as:
pointer operator+(pointer p, integer i);
and
pointer operator+(integer i, pointer p);
of which only the first is really ne...
Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
It is loosely related to this question: Are std::thread pooled in C++11? . Though the question differs, the intention is the same:
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std::auto_ptr to std::unique_ptr
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Scott Meyers also mentioned in his "Effective C++" (3rd Edition) Item 13 (page 64) that STL containers require that their contents exhibit "normal" copying behavior, so containers of auto_ptr aren't allowed.
– Qiang Xu
Oct 29 '12 at...
Error: Jump to case label
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C++11 standard on jumping over some initializations
JohannesD gave an explanation, now for the standards.
The C++11 N3337 standard draft 6.7 "Declaration statement" says:
3 It is possible to transfer into a block, but n...
Generating an Excel file in ASP.NET [closed]
...ening a non native Excel file
One worksheet per workbook
OpenXML (Office 2007 .XLSX)
Pros:
Native Excel format
Supports all Excel features
Do not require an install copy of Excel
Can generate Pivot tables
Can be generated using open source project EPPlus
Cons:
Limited compatibility outside...
How do I obtain a Query Execution Plan in SQL Server?
...cution Plan Basics
SHOWPLAN Permission and Transact-SQL Batches
SQL Server 2008 – Using Query Hashes and Query Plan Hashes
Analyzing the SQL Server Plan Cache
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What exactly does stringstream do?
I am trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output...