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Left-pad printf with spaces
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If you want the word "Hello" to print in a column that's 40 characters wide, with spaces padding the left, use the following.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you want the colum...
.NET JIT potential error?
The following code gives different output when running the release inside Visual Studio, and running the release outside Visual Studio. I'm using Visual Studio 2008 and targeting .NET 3.5. I've also tried .NET 3.5 SP1.
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How To Change DataType of a DataColumn in a DataTable?
..., to a given type:
public static class DataTableExt
{
public static void ConvertColumnType(this DataTable dt, string columnName, Type newType)
{
using (DataColumn dc = new DataColumn(columnName + "_new", newType))
{
// Add the new column which has the new type, a...
Entity Framework - Code First - Can't Store List
...u cannot use char as the first argument of string.Join and you have to provide a char[] as the first argument of string.Split if you also want to provide StringSplitOptions.
– Dominik
Apr 8 '19 at 14:17
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jQuery map vs. each
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@DaveVandenEynde if you want to break in the middle of the loop using return false;
– Vigneshwaran
Sep 19 '13 at 9:59
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Can't delete virtual device from Eclipse, android
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In Linux/*nix and OSX:
Find the .android folder in your $HOME directory.
In .android there should be a avd folder
In the avd folder should be one or multiple .ini file and a corresponding *.avd virtual device folder.
Delete both the .ini file and the .avd folder ...
Linux, Why can't I write even though I have group permissions?
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Did you logout and log back in after making the group changes? See:
Super User answer involving touch permissions failure
share
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If I revoke an existing distribution certificate, will it mess up anything with existing apps?
... get the guy who has the key to sign the app, they finally came back and said, "Just get it done!". So I am wondering how to proceed. If I go into the provisioning portal, and revoke the dist certificate, and then re-assign one, will I then be able to sign the app and upload it without problem?
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instantiate a class from a variable in PHP?
...tantiating a class from another namespace would be huge headache. Also consider that variables can be passed around. When the classname is written as text into a php file, whoever writes it knows exactly what namespace it is written in. But when a variable is passed between functions, it'd be a nigh...
GIT repository layout for server with multiple projects
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The guideline is simple, in regards to Git limits:
one repo per project
a main project with submodules.
The idea is not to store everything in one giant git repo, but build a small repo as a main project, which will reference t...