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Efficiency of premature return in a function
This is a situation I encounter frequently as an inexperienced programmer and am wondering about particularly for an ambitious, speed-intensive project of mine I'm trying to optimize. For the major C-like languages (C, objC, C++, Java, C#, etc) and their usual compilers, will these two functions ru...
How to parse a string to an int in C++?
What's the C++ way of parsing a string (given as char *) into an int? Robust and clear error handling is a plus (instead of returning zero ).
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How to concatenate properties from multiple JavaScript objects
I am looking for the best way to "add" multiple JavaScript objects (associative arrays).
14 Answers
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round() for float in C++
I need a simple floating point rounding function, thus:
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What exactly is nullptr?
We now have C++11 with many new features. An interesting and confusing one (at least for me) is the new nullptr .
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Efficiency of purely functional programming
Does anyone know what is the worst possible asymptotic slowdown that can happen when programming purely functionally as opposed to imperatively (i.e. allowing side-effects)?
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Java's final vs. C++'s const
The Java for C++ programmers tutorial says that (highlight is my own):
11 Answers
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Pointer expressions: *ptr++, *++ptr and ++*ptr
Recently I have come across this problem which I am unable to understand by myself.
10 Answers
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How do I read text from the (windows) clipboard from python?
How do I read text from the (windows) clipboard from python?
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Mysql ibdata 丢失或损坏如何通过frm&ibd 恢复数据 - 更多技术 - 清泛网 - ...
...据。my.ini的设置为 innodb_file_per_table = 1。
参考 http://blog.chinaunix.net/uid-24111901-id-2627876.html
1、找回表结构，如果表结构没有丢失直接到下一步
a、先创建一个数据库，这个数据库必须是没有表和任何操作的。
b、创建一个表结...