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How to prevent gcc optimizing some statements in C?
...ready...
unsigned char *pageptr = ...;
((unsigned char volatile *)pageptr)[0] = pageptr[0];
The volatile type qualifier instructs the compiler to be strict about memory stores and loads. One purpose of volatile is to let the compiler know that the memory access has side effects, and therefore mus...
Gradient of n colors ranging from color 1 and color 2
...friend here:
colfunc <- colorRampPalette(c("black", "white"))
colfunc(10)
# [1] "#000000" "#1C1C1C" "#383838" "#555555" "#717171" "#8D8D8D" "#AAAAAA"
# [8] "#C6C6C6" "#E2E2E2" "#FFFFFF"
And just to show it works:
plot(rep(1,10),col=colfunc(10),pch=19,cex=3)
...
Determine if $.ajax error is a timeout
...: "/ajax_json_echo/",
type: "GET",
dataType: "json",
timeout: 1000,
success: function(response) { alert(response); },
error: function(xmlhttprequest, textstatus, message) {
if(textstatus==="timeout") {
alert("got timeout");
} else {
alert(t...
Overwrite single file in my current branch with the same file in the master branch?
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prayagupd
25.6k1010 gold badges120120 silver badges169169 bronze badges
answered Dec 12 '12 at 19:51
Nepomuk Frädric...
How does Angular $q.when work?
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Derek EkinsDerek Ekins
10.7k66 gold badges5555 silver badges6868 bronze badges
...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
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There are only 3% of numbers between 1 and 230 which are NOT between 225 and 230. So, this sounds pretty normal :)
Because 225 / 230 = 2-5 = 1/32 = 0.03125 = 3.125%
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What happens if i return before the end of using statement? Will the dispose be called?
...de:
using(MemoryStream ms = new MemoryStream())
{
//code
return 0;
}
effectively becomes:
MemoryStream ms = new MemoryStream();
try
{
// code
return 0;
}
finally
{
ms.Dispose();
}
So, because finally is guaranteed to execute after the try block has finished execution, reg...
How to get first and last day of the week in JavaScript
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20 Answers
20
Active
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Get current value of a setting in Vim
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answered Jan 16 '10 at 17:28
JaredParJaredPar
648k133133 gold badges11601160 silver badges13951395 bronze badges
...
Ruby on Rails patterns - decorator vs presenter
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104
A decorator is more of a "let's add some functionality to this entity". A presenter is more of ...