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How to determine the encoding of text?
...fortunately, using the example code, I can't get past open(): UnicodeDecodeError: 'utf-8' codec can't decode byte 0xfc in position 169799: invalid start byte. The file encoding according to vim's :set fileencoding is latin1.
– xtian
Aug 19 '17 at 15:51
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Linux下安装项目管理工具Redmine - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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4、Ruby on Rails
# gem install rails
安装成功提示：
Successfully installed activesupport-2.3.3
Successfully installed activerecord-2.3.3
Successfully installed rack-1.0.0
Successfully installed actionpack-2.3.3
Successfully installed actionmailer-2.3.3
Su...
Algorithm to calculate the number of divisors of a given number
... 40 digit number like 124321342332143213122323434312213424231341 in about .05 seconds. (Its factorization, in case you wondered, is 29*439*1321*157907*284749*33843676813*4857795469949. I am quite confident that it didn't figure this out using the sieve of Atkin...)
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How to store printStackTrace into a string [duplicate]
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Something along the lines of
StringWriter errors = new StringWriter();
ex.printStackTrace(new PrintWriter(errors));
return errors.toString();
Ought to be what you need.
Relevant documentation:
StringWriter
PrintWriter
Throwable
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How do I check for C++11 support?
...n of the C++ standard supported see this
#if __cplusplus <= 199711L
#error This library needs at least a C++11 compliant compiler
#endif
It is set to 199711L in Visual Studio 2010 SP1, but I do not know if vendors will be so bold to increase it already if they just have (partial) compiler-le...
Count number of occurrences of a pattern in a file (even on same line)
...rt | uniq -c works just fine (with GNU grep): gist.github.com/hudolejev/81a05791f38cbacfd4de3ee3b44eb4f8
– hudolejev
Apr 13 '17 at 8:00
add a comment
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How do I pass a unique_ptr argument to a constructor or a function?
...ts (the order of evaluation being unspecified), which could lead to subtle errors; by contrast, using mode 3 assures that no move from p takes place before the function call, so other arguments can safely access a value through p.
When used with std::shared_ptr, this mode is interesting in that wit...
Identify if a string is a number
...ails
– BlackTigerX
Oct 23 '14 at 22:05
try parsing 0,60 (that is a comma!) it is an invalid number but will be parsed ...
C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ct TestStuct
{
}
int size = sizeof(new TestStuct());
编译后，提示：
错误 1 “ConsoleApplication3.TestStuct”没有预定义的大小，因此 sizeof 只能在不安全的上下文中使用(请考虑使用 System.Runtime.InteropServices.Marshal.SizeOf)
修改为Marshal.SizeOf...
Why is 128==128 false but 127==127 is true when comparing Integer wrappers in Java?
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answered Feb 16 '16 at 2:05
yanghaognyanghaogn
67155 silver badges1414 bronze badges
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