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How do I base64 encode (decode) in C?
..., 'v',
'w', 'x', 'y', 'z', '0', '1', '2', '3',
'4', '5', '6', '7', '8', '9', '+', '/'};
static char *decoding_table = NULL;
static int mod_table[] = {0, 2, 1};
char *base64_encode(const unsigned char *data,
size_t ...
C++及Windows异常处理(try，catch; __try,__finally, __except) - C/C++ - ...
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__try{
puts( "in try ");
*p = 13; // causes an access violation exception;
}__finally{
puts( "in finally ");
}
}__except(puts( "in filter "), 1){
puts( "in except ");
}
...
Limiting floats to two decimal points
I want a to be rounded to 13.95 .
26 Answers
26
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How to create fixed space and flexible space bar button items programmatically?
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edited Feb 3 '14 at 17:05
iwasrobbed
44.5k2020 gold badges138138 silver badges187187 bronze badges
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When I catch an exception, how do I get the type, file, and line number?
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389
import sys, os
try:
raise NotImplementedError("No error")
except Exception as e:
exc_...
How to create a numpy array of all True or all False?
...rns:
array([[ True, True],
[ True, True]], dtype=bool)
UPDATE: 30 October 2013
Since numpy version 1.8, we can use full to achieve the same result with syntax that more clearly shows our intent (as fmonegaglia points out):
numpy.full((2, 2), True, dtype=bool)
UPDATE: 16 January 2017
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How do I assign an alias to a function name in C++?
... `std::bind`
greet_a = std::bind(greet, a, std::placeholders::_1);
greet_a(3); // equivalent to greet(a, 3) => a.f(3);
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What is a plain English explanation of “Big O” notation?
... example of Big-O I can think of is doing arithmetic. Take two numbers (123456 and 789012). The basic arithmetic operations we learned in school were:
addition;
subtraction;
multiplication; and
division.
Each of these is an operation or a problem. A method of solving these is called an algori...
How do I use the new computeIfAbsent function?
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edited Oct 9 '13 at 18:17
answered Oct 9 '13 at 18:12
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In Python, using argparse, allow only positive integers
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edited Jan 16 '19 at 8:43
taras
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answered Jan 2...