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What is the easiest way to remove the first character from a string?

... only does one and finishes. Consider gsub like it's a minimum of two sub calls. Also, it's important to remember that gsub, and sub can also be handicapped by poorly written regex which match much more slowly than a sub-string search. If possible anchor the regex to get the most speed from it. Th...
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static linking only some libraries

How can I statically link only a some specific libraries to my binary when linking with GCC? 8 Answers ...
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Chrome sendrequest error: TypeError: Converting circular structure to JSON

...mit": null, "size": 0, "chunks": [], "writable": true, "readable": false, "_events": { "pipe": [null, null], "error": [null] }, "before": [null], "after": [], "response": { "output": [], "outputEncodings": [], "writable": true, "_last": false, "chunkedEncoding": false, ...
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Date vs DateTime

... Unfortunately, not in the .Net BCL. Dates are usually represented as a DateTime object with the time set to midnight. As you can guess, this means that you have all the attendant timezone issues around it, even though for a Date object you'd want absolutely no timezone han...
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How do I output coloured text to a Linux terminal?

... You need to output ANSI colour codes. Note that not all terminals support this; if colour sequences are not supported, garbage will show up. Example: cout << "\033[1;31mbold red text\033[0m\n"; Here, \033 is the ESC character, ASCII 27. It is followed by [, then zero o...
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How does C compute sin() and other math functions?

...on in C, contributed by IBM. Since October 2011, this is the code that actually runs when you call sin() on a typical x86-64 Linux system. It is apparently faster than the fsin assembly instruction. Source code: sysdeps/ieee754/dbl-64/s_sin.c, look for __sin (double x). This code is very complex. N...
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What are the differences between -std=c++11 and -std=gnu++11?

...oid extensions because I don't recommend doing anything that isn't specifically defined by the Standard... but even then, "violates" is a strange and loaded term, when a lot of these extensions are, to use Standardese, just implementation-defining or specifying things that the Standard is silent on ...
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Eclipse - Unable to install breakpoint due to missing line number attributes

... The above didn't work for me. I had to click the 'Remove all Breakpoints' icon in the Eclipse > Breakpoints view, then re-add the breakpoints. That worked. – Vik David May 19 '11 at 14:05 ...
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Split array into chunks

... Nope, the last chunk should just be smaller than the others. – Blazemonger Jul 22 '14 at 23:27 7 ...
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Select multiple records based on list of Id's with linq

I have a list containing Id's of my UserProfile table. How can i select all UserProfiles based on the list of Id's i got in a var using LINQ ? ...