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Iterate keys in a C++ map
...ally, someone who read the "not the pairs" bit! Cheers, this has saved me time digging through the spec!
– Mark K Cowan
Aug 25 '14 at 12:43
1
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How can I remove non-ASCII characters but leave periods and spaces using Python?
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@NoamManos this was 4-5 times faster for me thatn the join...filter...lambda solution, thanks.
– artfulrobot
Feb 22 '16 at 11:59
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How do I create a random alpha-numeric string in C++?
... I found it a bit too verbose for this simple task. Look-up tables can sometimes do wonders:
#include <iostream>
#include <ctime>
#include <unistd.h>
using namespace std;
string gen_random(const int len) {
string tmp_s;
static const char alphanum[] =
"0123456...
How to detect when an Android app goes to the background and come back to the foreground
...ng specific when it is brought back to the foreground after some amount of time. Is there a way to detect when an app is sent to the background or brought to the foreground?
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How to get duplicate items from a list using LINQ? [duplicate]
... here is that it can give wrong answer if the query is enumerated a second time (to prevent, you have to either clear the set or initialize a new one every time).
– nawfal
Sep 23 '13 at 19:16
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Why does the arrow (->) operator in C exist?
...t all). It was very weird functionality, no doubt. But it was there at the time.
Of course, this weird functionality is not a very strong reason against introducing overloaded . operator for pointers (as you suggested) in the reworked version of C - K&R C. But it hasn't been done. Maybe at that...
Is it possible to install APK file if more than one emulators/devices are connected [duplicate]
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@djaqeel: i was new to android at that time. Now i know all that very well.
– Shreyash Mahajan
Aug 16 '13 at 6:12
2
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Displaying the build date
... hard way.
The most reliable method turns out to be retrieving the linker timestamp from the PE header embedded in the executable file -- some C# code (by Joe Spivey) for that from the comments to Jeff's article:
public static DateTime GetLinkerTime(this Assembly assembly, TimeZoneInfo target = nu...
How do I print the type of a variable in Rust?
...ish to find out the type of a variable and are willing to do it at compile time, you can cause an error and get the compiler to pick it up.
For example, set the variable to a type which doesn't work:
let mut my_number: () = 32.90;
// let () = x; would work too
error[E0308]: mismatched types
--&...
DateTime2 vs DateTime in SQL Server
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The MSDN documentation for datetime recommends using datetime2. Here is their recommendation:
Use the time, date, datetime2 and
datetimeoffset data types for new
work. These types align with the SQL
Standard. They are more portable.
time, datet...