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Printing hexadecimal characters in C
... case), your chars are being promoted to int via sign-extension.
Since c0 and 80 have a leading 1-bit (and are negative as an 8-bit integer), they are being sign-extended while the others in your sample don't.
char int
c0 -> ffffffc0
80 -> ffffff80
61 -> 00000061
Here's a solution:
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Is it possible to start a shell session in a running container (without ssh)
I was naively expecting this command to run a bash shell in a running container :
15 Answers
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How can I benchmark JavaScript code? [closed]
...kage that helps me benchmark JavaScript code? I'm not referring to Firebug and such tools.
8 Answers
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How to check if a string contains only digits in Java [duplicate]
...\\d+";
As per Java regular expressions, the + means "one or more times" and \d means "a digit".
Note: the "double backslash" is an escape sequence to get a single backslash - therefore, \\d in a java String gives you the actual result: \d
References:
Java Regular Expressions
Java Character Es...
SQL server query to get the list of columns in a table along with Data types, NOT NULL, and PRIMARY
... of columns in a particular table, its associated data types (with length) and if they are not null. And I have managed to do this much.
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Like Operator in Entity Framework?
...cified expression, or zeros if the pattern is not found, on all valid text and character data types
Namespace: System.Data.Objects.SqlClient
Assembly: System.Data.Entity (in System.Data.Entity.dll)
A bit of an explanation also appears in this forum thread.
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Check if a value is in an array (C#)
... @0A0D. This answer is I think straight best one as simplest/shortest and well known way to achieve same thing (How do I check if a value is in an array in C#?) and efficient as well. No loop no extra method. Just a namespace is extra which is not a big thing.
– Sami
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How do you serve a file for download with AngularJS or Javascript?
...omatically when the document is unloaded; however, for optimal performance and memory usage, if there are safe times when you can explicitly unload them, you should do so.
Source: MDN
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Arrow operator (->) usage in C
...g a book called "Teach Yourself C in 21 Days" (I have already learned Java and C# so I am moving at a much faster pace). I was reading the chapter on pointers and the -> (arrow) operator came up without explanation. I think that it is used to call members and functions (like the equivalent of...
How do I remove an item from a stl vector with a certain value?
I was looking at the API documentation for stl vector, and noticed there was no method on the vector class that allowed the removal of an element with a certain value. This seems like a common operation, and it seems odd that there's no built in way to do this.
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