大约有 44,000 项符合查询结果（耗时：0.0617秒） [XML]
Why is an int in OCaml only 31 bits?
...space and a number of special objects like true, false, nil, the 127 ASCII characters, some commonly used short strings, the empty list, the empty object, the empty array and so on near the 0 address.
For example, in the MRI, YARV and Rubinius Ruby interpreters, integers are encoded the way I descr...
What's the difference between utf8_general_ci and utf8_unicode_ci?
...
These two collations are both for the UTF-8 character encoding. The differences are in how text is sorted and compared.
Note: In MySQL you have to use utf8mb4 rather than utf8. Confusingly, utf8 is a flawed UTF-8 implementation from early MySQL versions which remains ...
Declaration/definition of variables locations in ObjectiveC?
...#import "Cow.h"
#import <Foundation/Foundation.h>
int main(int argc, char *argv[]) {
@autoreleasepool {
Cow *cow = [Cow new];
[cow performSelector:@selector(blindAccess)];
}
}
This prints
iMadeVisible
iMadeVisible2
iMadeVisible3
Note that I was able to access the...
How can I implement an Access Control List in my Web MVC application?
...ter. Or were you question kinda "long-form", that cannot be crammed in 140 chars ?
– tereško
Sep 28 '12 at 3:17
Reads...
How to use glOrtho() in OpenGL?
...0, 1.5, 20.0);
}
glMatrixMode(GL_MODELVIEW);
}
int main(int argc, char** argv) {
glutInit(&argc, argv);
if (argc > 1) {
ortho = 1;
}
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(500, 500);
glutInitWindowPosition(100, 100);
glutCr...
Parameterize an SQL IN clause
...n. But Basarb's could only reach 2100 if the average tag length was < 3 chars (since you need a delimiter as well). msdn.microsoft.com/en-us/library/ms143432.aspx
– Mark Brackett
Feb 11 '10 at 12:17
...
Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
... On all modern implementations, anything beyond int pow(int base, unsigned char exponent) is somewhat useless anyway. Either the base is 0, or 1, and the exponent doesn't matter, it's -1, in which case only the last bit of exponent matters, or base >1 || base< -1 in which case exponent<256 ...
How do I expand a tuple into variadic template function's arguments?
...me U> void my_func(T &&t, U &&u) {}
int main(int argc, char *argv[argc]) {
std::tuple<int, float> my_tuple;
std::apply([](auto &&... args) { my_func(args...); }, my_tuple);
return 0;
}
This work around is a simplified solution to the general problem of pa...
Algorithm to find top 10 search terms
...sume only 300MB memory for 4 million different words. Some hint: use ASCII char to represent Strings), and this is much acceptable.
Meanwhile, there will be another process that is activated once it finds any disk file generated by the system, then start merging it. Since the disk file is sorted, m...
xkcd style graphs in MATLAB
...h,'textarrow',[0.4 0.55],[0.8 0.65],...
'string',sprintf('text%shere',char(10)),'headStyle','none','lineWidth',1.5,...
'fontName','Comic Sans MS','fontSize',14,'verticalAlignment','middle','horizontalAlignment','left')
%# capture with export_fig
im = export_fig('-nocrop',fh);
%# add a bi...