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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?
...ill somewhat faster than sqrtss.
edit: If speed is critical, and you're really calling this in a loop for many values, you should be using the vectorized versions of these instructions, rsqrtps or sqrtps, both of which process four floats per instruction.
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Rename multiple files based on pattern in Unix
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Not present on all *nix systems. Not on Max OS X for one, and no package in fink to get it. Haven't looked at MacPorts.
– dmckee --- ex-moderator kitten
Jul 6 '09 at 16:07
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download file using an ajax request
...n as your site.
You could always make the AJAX request/window.location a fallback by using some JavaScript to test if download is supported and if not, switching it to call window.location.
Original answer
You can't have an AJAX request open the download prompt since you physically have to naviga...
Ruby capitalize every word first letter
... @macsplean the &:method syntax in map is a concise way to call a method on each item in the array. You can then call join to turn that array into a string. The * ' ' is an alternative way to call join. You can think of it as multiplying the items in the array together to create a str...
How to read a line from the console in C?
...ters it read. So you use fgetc:
char * getline(void) {
char * line = malloc(100), * linep = line;
size_t lenmax = 100, len = lenmax;
int c;
if(line == NULL)
return NULL;
for(;;) {
c = fgetc(stdin);
if(c == EOF)
break;
if(--len == 0)...
Change Twitter Bootstrap Tooltip content on click
...ust found this today whilst reading the source code. So $.tooltip(string) calls any function within the Tooltip class. And if you look at Tooltip.fixTitle, it fetches the data-original-title attribute and replaces the title value with it.
So we simply do:
$(element).tooltip('hide')
.att...
Is there a better way of writing v = (v == 0 ? 1 : 0); [closed]
...+! v}).v.
– pimvdb
Aug 2 '11 at 11:32
17
@Brian: not with that magic + sign! ¯\_(ツ)_/¯
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SVN command to delete all locally missing files
In SVN is there a command I can use to delete all locally missing files in a directory?
12 Answers
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When using a Settings.settings file in .NET, where is the config actually stored?
When using a Settings.settings file in .NET, where is the config actually stored?
I want to delete the saved settings to go back to the default state, but can't find where it's stored... any ideas?
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count(*) vs count(column-name) - which is more correct? [duplicate]
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COUNT(*) counts all rows
COUNT(column) counts non-NULLs only
COUNT(1) is the same as COUNT(*) because 1 is a non-null expressions
Your use of COUNT(*) or COUNT(column) should be based on the desired output only.
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