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How do I do base64 encoding on iOS?
..., 'p', 'q', 'r', 's', 't', 'u', 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
};
@implementation NSString (NSStringAdditions)
+ (NSString *) base64StringFromData: (NSData *)data length: (int)length {
unsigned long ixtext, lentext;
long ctremaining;
uns...
Is it worth using Python's re.compile?
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TriptychTriptych
180k3131 gold badges140140 silver badges167167 bronze badges
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Selecting data frame rows based on partial string match in a column
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3 Answers
3
Active
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Regex to validate date format dd/mm/yyyy
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336
The regex you pasted does not validate leap years correctly, but there is one that does in the...
How do I convert a numpy array to (and display) an image?
...IL import Image
import numpy as np
w, h = 512, 512
data = np.zeros((h, w, 3), dtype=np.uint8)
data[0:256, 0:256] = [255, 0, 0] # red patch in upper left
img = Image.fromarray(data, 'RGB')
img.save('my.png')
img.show()
shar...
Avoid trailing zeroes in printf()
...tf format specifiers. The closest you could get would be:
printf("%.6g", 359.013); // 359.013
printf("%.6g", 359.01); // 359.01
but the ".6" is the total numeric width so
printf("%.6g", 3.01357); // 3.01357
breaks it.
What you can do is to sprintf("%.20g") the number to a string buffer then...
Why is address zero used for the null pointer?
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edited May 3 '10 at 17:44
answered May 3 '10 at 17:22
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No provider for “framework:jasmine”! (Resolving: framework:jasmine)
...0",
"grunt-contrib-compass": "~0.6.0",
"grunt-contrib-concat": "~0.3.0",
"grunt-contrib-connect": "~0.5.0",
"grunt-contrib-copy": "~0.4.1",
"grunt-contrib-cssmin": "~0.7.0",
"grunt-contrib-htmlmin": "~0.1.3",
"grunt-contrib-imagemin": "~0.3.0",
"grunt-contrib-jshint":...
Need a simple explanation of the inject method
... |
edited Apr 2 '09 at 16:37
answered Apr 2 '09 at 16:31
Dr...
C char array initialization
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edited Jan 20 '15 at 18:53
answered Sep 8 '13 at 21:51
oua...