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List comprehension vs. lambda + filter
...d myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.
14 Answers
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Why does Lua have no “continue” statement?
I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those:
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Downcasting in Java
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Downcasting is allowed when there is a possibility that it succeeds at run time:
Object o = getSomeObject(),
String s = (String) o; // this is allowed because o could reference a String
In some cases this will not succeed:
Object o = new Object();
String s = (String) ...
Message Queue vs. Web Services? [closed]
Under what conditions would one favor apps talking via a message queue instead of via web services (I just mean XML or JSON or YAML or whatever over HTTP here, not any particular type)?
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Flex-box: Align last row to grid
I have a simple flex-box layout with a container like:
27 Answers
27
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Can't import my own modules in Python
...d time understanding how module importing works in Python (I've never done it in any other language before either).
9 Answe...
Undefined, unspecified and implementation-defined behavior
...ng to programmers coming from other languages (other languages try to hide it better). Basically, it is possible to write C++ programs that do not behave in a predictable way, even though many C++ compilers will not report any errors in the program!
Let's look at a classic example:
#include <ios...
Is it possible to get CMake to build both a static and shared version of the same library?
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Yes, it's moderately easy. Just use two "add_library" commands:
add_library(MyLib SHARED source1.c source2.c)
add_library(MyLibStatic STATIC source1.c source2.c)
Even if you have many source files, you would place the list of ...
How do I reset a sequence in Oracle?
...ble AFAIK. (Please correct me if I'm wrong!).
However, if you want to set it to 0, you can just delete and recreate it.
If you want to set it to a specific value, you can set the INCREMENT to a negative value and get the next value.
That is, if your sequence is at 500, you can set it to 100 via
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Best way to extract a subvector from a vector?
Suppose I have a std::vector (let's call it myVec ) of size N . What's the simplest way to construct a new vector consisting of a copy of elements X through Y, where 0
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