大约有 44,000 项符合查询结果（耗时：0.0356秒） [XML]
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...
Floating point vs integer calculations on modern hardware
...tv.tv_usec);
# endif
}
template< typename Type >
void my_test(const char* name) {
Type v = 0;
// Do not use constants or repeating values
// to avoid loop unroll optimizations.
// All values >0 to avoid division by 0
// Perform ten ops/iteration to reduce
// impact of ++i be...
When is assembly faster than C?
...l1
fstp result
fstp result
}
return result;
}
int main (int, char **)
{
int count = 1000000;
float *source = new float [count];
for (int i = 0 ; i < count ; ++i) {
source [i] = static_cast <float> (rand ()) / static_cast <float> (RAND_MAX);
}
LARGE_INTEG...
How to develop a soft keyboard for Android? [closed]
...
}
}
}
private void isBack(View v) {
if (isEdit == true) {
CharSequence cc = mEt.getText();
if (cc != null && cc.length() > 0) {
{
mEt.setText("");
mEt.append(cc.subSequence(0, cc.length() - 1));
}
}
}
if (isEdit1 == true) {
CharSequence cc...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...t z = add(x, y);
sum += z;
}
return sum;
}
int main(int , char* argv[]) {
int result = work(*argv[1], *argv[2]);
return result;
}
and compiled as: g++ -O2 add.cpp main.cpp.
gcc won't inline add()!
That's all, it's that easy to unintendedly create hotspots l...
How to generate a random number in C++?
...me(CLOCK_REALTIME, &tm);
return tm.tv_nsec;
}
int main (int argc, char* argv[]) {
unsigned int dice_rolls = 12;
random::mt19937 rng(current_time_nanoseconds());
random::uniform_int_distribution<> six(1,6);
for(unsigned int i=0; i<dice_rolls; i++){
cout <...
What are the Dangers of Method Swizzling in Objective-C?
... class_getInstanceMethod(class, original);
if (method) {
const char *type = method_getTypeEncoding(method);
imp = class_replaceMethod(class, original, replacement, type);
if (!imp) {
imp = method_getImplementation(method);
}
}
if (imp &&...
What encoding/code page is cmd.exe using?
...rograms
print gibberish, and sometimes they do not.
First of all, Unicode characters will only display if the
current console font contains the characters. So use
a TrueType font like Lucida Console instead of the default Raster Font.
But if the console font doesn’t contain the character you’r...
How can I efficiently select a Standard Library container in C++11?
... well known image (cheat sheet) called "C++ Container choice". It's a flow chart to choose the best container for the wanted usage.
...