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char类型移动跨平台踩过的坑 - C/C++ - 清泛网移动版 - 专注IT技能提升
char类型移动跨平台踩过的坑CFLAG-fsigned-charchar 跨平台 arm fsigned-charchar强转int时，发现在x86平台下是按照有符号处理的，但是在ARM32下被当成了无符号导致问题，ARM64正常有符号。经调查，在PC上，char类型默认为signed-char,但是在一...
char类型移动跨平台踩过的坑 - C/C++ - 清泛网 - 专注IT技能提升
char类型移动跨平台踩过的坑CFLAG-fsigned-charchar 跨平台 arm fsigned-charchar强转int时，发现在x86平台下是按照有符号处理的，但是在ARM32下被当成了无符号导致问题，ARM64正常有符号。经调查，在PC上，char类型默认为signed-char,但是在一...
How to convert currentTimeMillis to a date in Java?
... = java.time.format.DateTimeFormatter.ofPattern("u-M-d hh:mm:ss a O");
var string = zonedDateTime.format(formatter);
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How do I check if a variable exists?
...nd how do you turn the name of variable that possibly doesn't exist into a string?
– SilentGhost
May 9 '09 at 13:27
16
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Convert string to List in one line?
I have a string:
7 Answers
7
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How do you Encrypt and Decrypt a PHP String?
...strlen() and mb_substr(), using the '8bit' character set mode to prevent mbstring.func_overload issues.
IVs should be generating using a CSPRNG; If you're using mcrypt_create_iv(), DO NOT USE MCRYPT_RAND!
Also check out random_compat.
Unless you're using an AEAD construct, ALWAYS encrypt then MAC...
Using @property versus getters and setters
... to memorize, which is significantly less useful. Axioms could be used for extrapolation, and help you approach problems no one has seen yet. It's a shame that the property feature threatens to render the idea of Pythonic axioms nearly worthless. So all we're left with is a checklist.
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Create Generic method constraining T to an Enum
... better implementation should be something like this:
public T GetEnumFromString<T>(string value) where T : struct, IConvertible
{
if (!typeof(T).IsEnum)
{
throw new ArgumentException("T must be an enumerated type");
}
//...
}
This will still permit passing of value type...
Transposing a NumPy array
...rally speaking though, you don't ever need to worry about this. Adding the extra dimension is usually not what you want, if you're just doing it out of habit. Numpy will automatically broadcast a 1D array when doing various calculations. There's usually no need to distinguish between a row vector a...
How do I get the color from a hexadecimal color code using .NET?
...sing System.Windows.Media;
Color color = (Color)ColorConverter.ConvertFromString("#FFDFD991");
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