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Open file in a relative location in Python
...n a subdirectory beneath where the script is actually located, you can use __file__ to help you out here. __file__ is the full path to where the script you are running is located.
So you can fiddle with something like this:
import os
script_dir = os.path.dirname(__file__) #<-- absolute dir the...
Why is there “data” and “newtype” in Haskell? [duplicate]
...peek inside.
Couldn't the compiler handle this for itself.
No, not really—this is a case where as the programmer you get to decide whether the constructor is strict or lazy. To understand when and how to make constructors strict or lazy, you have to have a much better understanding of lazy ...
Case insensitive string compare in LINQ-to-SQL
... accurate when you're trying to do case insensitive equality checks.
Ideally, the best way to do a case-insensitive equality check would be:
String.Equals(row.Name, "test", StringComparison.OrdinalIgnoreCase)
NOTE, HOWEVER that this does not work in this case! Therefore we are stuck with ToUpp...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
....v7.** { *; }
-keep interface android.support.v7.** { *; }
with this:
# Allow obfuscation of android.support.v7.internal.view.menu.**
# to avoid problem on Samsung 4.2.2 devices with appcompat v21
# see https://code.google.com/p/android/issues/detail?id=78377
-keep class !android.support.v7.inter...
Best way to give a variable a default value (simulate Perl ||, ||= )
...
In PHP 7 we finally have a way to do this elegantly. It is called the Null coalescing operator. You can use it like this:
$name = $_GET['name'] ?? 'john doe';
This is equivalent to
$name = isset($_GET['name']) ? $_GET['name']:'john doe'...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常...
编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...
...这并不是应该由编译器该干的活。这行语句会变成对函数_CxxThrowException (函数来自MSVCR100.dll或其他类似版本的dll)的调用。 这个函数有编译器内部构建。你喜欢的话，你可以自己调用它。这个函数的第一个参数是指向抛出的异常...