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...(void){ cout << "DerivedAgain::foo()"<< endl; }
} ;
int main(int argc, char** argv)
{
DerivedAgain da;
Base* pB = &da;
da.foo();
pB->foo();
return 0;
}
上述代码运行结果是什么？等等，你确定上述代码能通过编译？在笔者Ubuntu 12.04 + gcc...
How to get the first five character of a String
I have read this question to get first char of the string. Is there a way to get the first n number of characters from a string in C#?
...
Repeat Character N Times
In Perl I can repeat a character multiple times using the syntax:
23 Answers
23
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How to negate specific word in regex? [duplicate]
I know that I can negate group of chars as in [^bar] but I need a regular expression where negation applies to the specific word - so in my example how do I negate an actual bar , and not "any chars in bar"?
...
What's the most efficient test of whether a PHP string ends with another string?
...slower due to more testing.
Probably the most efficient way is to do loop char-by-char from the -sterlen(test) position till the end of the string and compare. That's the minimal amount of comparisons you can hope to do and there's hardly any extra memory used.
...
In Java, is there a way to write a string literal without having to escape quotes?
...of resides in the Java Language Specification:
StringLiteral:
"StringCharacters"
StringCharacters:
StringCharacter
| StringCharacters StringCharacter
StringCharacter:
InputCharacter but not " or \
| EscapeSequence
As you can see a StringLiteral can just be bound by " and ca...
URL encoding in Android
...
This method doesn't encode characters like ğ to %C4%9F. Accepted one encodes!
– Alexander Prokofyev
May 30 '15 at 15:11
...
Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...For example, the C-style cast would allow an integer pointer to point to a char.
char c = 10; // 1 byte
int *p = (int*)&c; // 4 bytes
Since this results in a 4-byte pointer pointing to 1 byte of allocated memory, writing to this pointer will either cause a run-time error or will overwri...
How to split a string in shell and get the last field
...ecially handy when parsing paths that could contain (or not) a finishing / character.
– eckes
Jan 23 '13 at 15:23
...
git ignore vim temporary files
...ension to find another file that can be used.
* First decrement the last char: ".swo", ".swn", etc.
* If that still isn't enough decrement the last but one char: ".svz"
* Can happen when editing many "No Name" buffers.
*/
if (fname[n - 1] == 'a') /* ".s?a" */
{
if (fname[n - 2]...