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How to get the last character of a string in a shell?
I have written the following lines to get the last character of a string:
8 Answers
8
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How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
7 Answers
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Determining 32 vs 64 bit in C++
...lt;sizeof(size_t)>(); }
int main()
{
// appropriate function will be selected at compile time
DoMyOperation();
return 0;
}
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Animate text change in UILabel
... UILabel{
func animation(typing value:String,duration: Double){
let characters = value.map { $0 }
var index = 0
Timer.scheduledTimer(withTimeInterval: duration, repeats: true, block: { [weak self] timer in
if index < value.count {
let char = characters[index]
...
What does template mean?
...er parameter:
template<unsigned int S>
struct Vector {
unsigned char bytes[S];
};
// pass 3 as argument.
Vector<3> test;
Template pointer parameter (passing a pointer to a function)
template<void (*F)()>
struct FunctionWrapper {
static void call_it() { F(); }
};
// pa...
Return positions of a regex match() in Javascript?
Is there a way to retrieve the (starting) character positions inside a string of the results of a regex match() in Javascript?
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Split large string in n-size chunks in JavaScript
I would like to split a very large string (let's say, 10,000 characters) into N-size chunks.
22 Answers
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C++静态和多态，亦敌亦友 - C/C++ - 清泛网 - 专注C/C++及内核技术
...(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 convert QString to std::string?
...
That's true - I was thinking about const char *x = qs.ToUtf8().constData(). Still, isn't it easier to just call qs.toStdString()?
– Vitali
Dec 6 '11 at 14:36
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How do you print out a stack trace to the console/log in Cocoa?
...#import <UIKit/UIKit.h>
#import "AppDelegate.h"
int main(int argc, char *argv[])
{
@autoreleasepool {
int retval;
@try{
retval = UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
}
@catch (NSException *exception)
...