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What does “%.*s” mean in printf?
...width specifier/precision to printf(), rather than hard coding it into the format string, i.e.
void f(const char *str, int str_len)
{
printf("%.*s\n", str_len, str);
}
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How to create a custom string representation for a class object?
...
print C
Use __str__ if you mean a readable stringification, use __repr__ for unambiguous representations.
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What is the meaning of polyfills in HTML5?
...t it's not part of HTML5, and you can have polyfills without having HTML5 (for example, to support CSS3 techniques you want).
Here's a good post:
http://remysharp.com/2010/10/08/what-is-a-polyfill/
Here's a comprehensive list of Polyfills and Shims:
https://github.com/Modernizr/Modernizr/wiki/HT...
What is the difference between 'java', 'javaw', and 'javaws'?
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See Java tools documentation for:
java command1/javaw command2
The java tool launches a Java application. It does this by starting a Java runtime environment, loading a specified class, and invoking that class's main method.
The javaw command is iden...
Why is Python 3.x's super() magic?
...current implementation instead. He anticipated that using a different name for super() could be a problem:
My patch uses an intermediate solution: it assumes you need __class__
whenever you use a variable named 'super'. Thus, if you (globally)
rename super to supper and use supper but not su...
What is this crazy C++11 syntax ==> struct : bar {} foo {};?
...his declaration is IMHO yet another example of this. I have been using C++ for many years and I still have difficulties to master this language.
– Giorgio
Aug 15 '11 at 16:52
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git ahead/behind info between master and branch?
I have created a branch for testing in my local repo ( test-branch ) which I pushed to Github .
5 Answers
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Working with Enums in android
I am almost done with a calculation activity I am working with in android for my app. I try to create a Gender Enum, but for some reason getting Syntax error, insert "EnumBody" to complete EnumDeclaration.
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When should I use perror(“…”) and fprintf(stderr, “…”)?
... value written to by POSIX syscalls (i.e., every thread has it's own value for errno). For instance, if you made a call to open(), and there was an error generated (i.e., it returned -1), you could then call perror immediately afterwards to see what the actual error was. Keep in mind that if you c...
What is the theoretical maximum number of open TCP connections that a modern Linux box can have
Assuming infinite performance from hardware, can a Linux box support >65536 open TCP connections?
3 Answers
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