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Define make variable at rule execution time
...latively easy way of doing this is to write the entire sequence as a shell script.
out.tar:
set -e ;\
TMP=$$(mktemp -d) ;\
echo hi $$TMP/hi.txt ;\
tar -C $$TMP cf $@ . ;\
rm -rf $$TMP ;\
I have consolidated some related tips here: https://stackoverflow.com/a/29085684/86967
...
Erasing elements from a vector
...nt is not guaranteed to occur only once in the vector. It may be present multiple times and I need to clear all of them. My code is something like this:
...
Convert a String In C++ To Upper Case
...
Boost string algorithms:
#include <boost/algorithm/string.hpp>
#include <string>
std::string str = "Hello World";
boost::to_upper(str);
std::string newstr = boost::to_upper_copy<std::string>("Hello World");
...
How to dynamic new Anonymous Class?
...remove fields on the fly.
edit
Sure you can: just cast it to IDictionary<string, object>. Then you can use the indexer.
You use the same casting technique to iterate over the fields:
dynamic employee = new ExpandoObject();
employee.Name = "John Smith";
employee.Age = 33;
foreach (var prop...
Apply function to all elements of collection through LINQ [duplicate]
... to approach this is to add your own ForEach generic method on IEnumerable<T>. Here's the one we've got in MoreLINQ:
public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
{
source.ThrowIfNull("source");
action.ThrowIfNull("action");
foreach ...
git clone through ssh
...
For repositories on GitHub, try:
git clone ssh://git@github.com/<user>/<repository name>.git
For setting up git to clone via ssh see:
Generating SSH Keys and add your generated key in Account Settings -> SSH Keys
Cloning with SSH
...
How often does python flush to a file?
...me.
Credits: this code was copied mostly from the liveAPI control surface scripts by Nathan Ramella
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How to get the current directory in a C program?
...
Have you had a look at getcwd()?
#include <unistd.h>
char *getcwd(char *buf, size_t size);
Simple example:
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
int main() {
char cwd[PATH_MAX];
if (getcwd(cwd, sizeof(cwd)) != NUL...
Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...2.23 (Q3 2019), that would use the new command git switch:
git switch -c <branch> --track <remote>/<branch>
If the branch exists in multiple remotes and one of them is named by the checkout.defaultRemote configuration variable, we'll use that one for the purposes of disambigu...
How to get datetime in JavaScript?
...with "0"
function AddZero(num) {
return (num >= 0 && num < 10) ? "0" + num : num + "";
}
window.onload = function() {
var now = new Date();
var strDateTime = [[AddZero(now.getDate()),
AddZero(now.getMonth() + 1),
now.getFullYear()].join("/"),
...