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How to redirect cin and cout to files?
...)
{
std::string line;
while(std::getline(std::cin, line)) //input from the file in.txt
{
std::cout << line << "\n"; //output to the file out.txt
}
}
int main()
{
std::ifstream in("in.txt");
std::streambuf *cinbuf = std::cin.rdbuf(); //save old buf
s...
How to search through all Git and Mercurial commits in the repository for a certain string?
...reflogs
Instead of walking the commit ancestry chain, walk reflog entries from
the most recent one to older ones.
So you could do this to find a particular string in a commit message that is dangling:
git log -g --grep=search_for_this
Alternatively, if you want to search the changes for a pa...
iOS: how to perform a HTTP POST request?
...y is nice and a great way to get started.
The HTTPS complications are far from trivial in various scenarios, and if you want to be robust in handling all the variations, you'll find the ASI library a real help.
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Why do I need to override the equals and hashCode methods in Java?
... the general contract for Object.hashCode(), which will prevent your class from functioning properly in conjunction with all hash-based collections, including HashMap, HashSet, and Hashtable.
Let's try to understand it with an example of what would happen if we override equals() without overriding ...
Html.RenderPartial() syntax with Razor
...a method that returns such a string with just a @ prefix to distinguish it from plain HTML you have on the page.
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What is an uber jar?
...over).
Hence, in this context, an uber-jar is an "over-jar", one level up from a simple JAR (a), defined as one that contains both your package and all its dependencies in one single JAR file. The name can be thought to come from the same stable as ultrageek, superman, hyperspace, and metadata, whi...
How to make my custom type to work with “range-based for loops”?
...n overload will not be called by a for(:) loop. See [stmt.ranged] 1.2-1.3 from n4527.
² Either call the begin/end method, or ADL-only lookup of free function begin/end, or magic for C-style array support. Note that std::begin is not called unless range_expression returns an object of type in nam...
How to save traceback / sys.exc_info() values in a variable?
...ng traceback module. Is there someway we can just print trace-back details from this object reference? sys.exc_info()[2]
– codersofthedark
Nov 23 '11 at 8:24
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Relatively position an element without it taking up space in document flow
... absolute; left: 100px; top: 100px">
Hi there, I'm 100px offset from where I ought to be, from the top and left.
</div>
</div>
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How can I convert my Java program to an .exe file? [closed]
...
UPDATE: GCJ is dead. It was officially removed from the GCC project in 2016. Even before that, it was practically abandoned for seven years, and in any case it was never sufficiently complete to serve as a viable alternative Java implementation.
Go find another Java AOT c...