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Why is my program slow when looping over exactly 8192 elements?
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"I think it's at least 3 times faster"—care to back up that claim with some metrics or citations?
– Adam Rosenfield
Sep 5 '12 at 4:27
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Is the practice of returning a C++ reference variable evil?
... calling us manages the lifetime of the class instance, so i_ will live at least that long.
And of course, there's nothing wrong with just:
int getInt() {
return 0;
}
If the lifetime should be left up to the caller, and you're just computing the value.
Summary: it's okay to return a referenc...
TypeScript function overloading
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As a heads up to others, I've oberserved that at least as manifested by TypeScript compiled by WebPack for Angular 2, you quietly get overWRITTEN instead of overLOADED methods.
myComponent {
method(): { console.info("no args"); },
method(arg): { console.info("with arg"...
What is the result of % in Python?
...itude" rather than the two's complement representation used these days (at least for integers). My first computer was a Control Data mainframe and it used one's complement for integers as well as floats. A pattern of 60 ones meant negative zero!
Tim Peters, who knows where all Python's floating poin...
Going from a framework to no-framework [closed]
...e (Sandbox 3rd-party ads/badges/videos. Already in WebKit. Likely to be at least partially implemented in Firefox 11.)
Content Security Policy (Firefox 4's new security framework, complimentary to the sandbox attribute. Now also being implemented in Chrome.)
If you're accepting HTML as input, I r...
Checking if a string can be converted to float in Python
... a second, or something. Also, the partition-based code doesn't handle at least one valid string.
$ ./floatstr.py
F..
partition sad: 3.1102449894
partition happy: 2.09208488464
..
re sad: 7.76906108856
re happy: 7.09421992302
..
try sad: 12.1525540352
try happy: 1.44165301323
.
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Why is it impossible to build a compiler that can determine if a C++ function will change the value
... In this concrete case "modifies_variable" should return true: There's at least one execution path in which the variable is indeed modified. And that execution path is reached after a call to an external, non-deterministic function - so whole function is non-deterministic. For these 2 reasons, the ...
How is a CRC32 checksum calculated?
...mentations would serialize the message one byte at a time and transmit the least significant bit of every byte first. The serial bit stream then went through a serial CRC-32 shift register computation, which was simply complemented and sent out on the wire after the message was completed. The reason...
How to replace plain URLs with links?
... to edit the original post to fix the mailto problem, but I have to add at least 6 characters to make an edit. But if you change this line: replacePattern3 = /(\w+@[a-zA-Z_]+?\.[a-zA-Z]{2,6})/gim; with this replacePattern3 = /(\w+@[a-zA-Z_]+?(\.[a-zA-Z]{2,6})+)/gim; that fixes the mailto problem :)
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How do you reverse a string in place in JavaScript?
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I can at least say that I had one interviewer a while back be pretty impressed when he asked me how to reverse a stri