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How to identify platform/compiler from preprocessor macros?
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See: http://predef.sourceforge.net/index.php
This project provides a reasonably comprehensive listing of pre-defined #defines for many operating systems, compilers, language and platform standards, and standard libraries.
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How to convert image to byte array
...eeling it might have had something to do with a 4K byte boundary in memory allocation. But that could easily be wrong. I switched to using a MemoryStream with a BinaryFormatter and I was able to become very consistent as tested with over 250 different test images of varying formats and sizes, loop...
Parsing HTML into NSAttributedText - how to set font?
... self.font.pointSize]];
self.attributedText = [[NSAttributedString alloc] initWithData:[string dataUsingEncoding:NSUnicodeStringEncoding]
options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
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Convert HTML to NSAttributedString in iOS
...can initialize an NSAttributedString using HTML, eg:
[[NSAttributedString alloc] initWithData:[htmlString dataUsingEncoding:NSUTF8StringEncoding]
options:@{NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType,
NSCharact...
When should I create a destructor?
...en would the fourth field initializer run? Never. But the object is still allocated and must be finalized. Heck, you don't even have a guarantee that fields of type double were fully initialized when the dtor runs. There could have been a thread abort halfway through writing the double and now the ...
Webrick as production server vs. Thin or Unicorn?
...e that has multiple components, and maybe one section is Rails, another is PHP, and rewrites are needed for both (i.e. rewrite old PHP paths to Rails)
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How do you allow spaces to be entered using scanf?
... 1. */
#define MAX_NAME_SZ 256
int main(int argC, char *argV[]) {
/* Allocate memory and check if okay. */
char *name = malloc(MAX_NAME_SZ);
if (name == NULL) {
printf("No memory\n");
return 1;
}
/* Ask user for name. */
printf("What is your name? ");
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Why does a RegExp with global flag give wrong results?
...he re.lastIndex. This is strange because I would expect a new RegExp to be allocated each time the function is called and not shared across multiple invocations of my function.
When I changed it to:
var re = new RegExp('^([^-]+)-([^-]+)-([^-]+)$', 'g');
Then I don't get the lastIndex holdover ef...
Basic HTTP authentication with Node and Express 4
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Use Buffer.from() // for strings or Buffer.alloc() // for numbers as Buffer() is deprecated due to security issues.
– Mr. Alien
Feb 25 at 6:56
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Check if a given key already exists in a dictionary
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this also avoids an extra allocation. (important for making tight loops a bit faster)
– nurettin
Dec 9 '18 at 9:19
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