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Objective-C parse hex string to integer
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Joshua Weinberg's answer is mostly correct, however the 0x prefix is optional when scanning hexadecimal integers. If you have a string in the format #01FFFFAB, you can still use NSScanner, but you can skip the first character.
unsigned result = 0;
NSScanner *scanner = [NSScanner...
How to get a enum value from string in C#?
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answered Oct 16 '09 at 15:25
Mehrdad AfshariMehrdad Afshari
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Convert decimal to binary in python [duplicate]
... representation of a given number in binary, use bin(i)
>>> bin(10)
'0b1010'
>>> 0b1010
10
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Why is creating a Thread said to be expensive?
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150
Java thread creation is expensive because there is a fair bit of work involved:
A large block ...
How should one use std::optional?
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edited May 11 '15 at 8:00
thecoshman
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How do I import the Django DoesNotExist exception?
...all along!
– Nick S
Feb 28 '17 at 2:08
Python 3.6 / Django 2.2 only the with solution worked for me.
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Force CloudFront distribution/file update
...e API Reference.
This is a sample request from the API Reference:
POST /2010-08-01/distribution/[distribution ID]/invalidation HTTP/1.0
Host: cloudfront.amazonaws.com
Authorization: [AWS authentication string]
Content-Type: text/xml
<InvalidationBatch>
<Path>/image1.jpg</Path>...
How to allocate aligned memory only using the standard library?
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+500
Original answer
{
void *mem = malloc(1024+16);
void *ptr = ((char *)mem+16) & ~ 0x0F;
memset_16aligned(ptr, 0, 1024)...
Reusable library to get human readable version of file size?
...unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
if abs(num) < 1024.0:
return "%3.1f%s%s" % (num, unit, suffix)
num /= 1024.0
return "%.1f%s%s" % (num, 'Yi', suffix)
Supports:
all currently known binary prefixes
negative and positive numbers
numbers larger than...
JavaScript file upload size validation
...rt the `files` property of file inputs.");
}
else if (!input.files[0]) {
bodyAppend("p", "Please select a file before clicking 'Load'");
}
else {
file = input.files[0];
bodyAppend("p", "File " + file.name + " is " + file.size + " bytes in size");
}
}
func...