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What is the size of an enum in C?
...tum's answer, which references C99, says that an enum may be as small as a char.
– Frank Kusters
Sep 15 '17 at 6:46
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Python: Tuples/dictionaries as keys, select, sort
... would be sqlite. You can keep the whole thing in memory by passing in the string ':memory:' instead of a filename.
If you do want to continue down this path, you can do it with the extra attributes in the key or the value. However a dictionary can't be the key to a another dictionary, but a tuple ...
Best explanation for languages without null
...ce type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y values, but unfortuna...
Objective-C formatting string for boolean?
...
One way to do it is to convert to strings (since there are only two possibilities, it isn't hard):
NSLog(@" %s", BOOL_VAL ? "true" : "false");
I don't think there is a format specifier for boolean values.
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Convert from enum ordinal to enum type
...the database. Furthermore, it's better to use int manipulation rather than String...
– user660940
Mar 15 '11 at 16:06
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HTML Entity Decode [duplicate]
...
A more interactive version:
$('form').submit(function() {
var theString = $('#string').val();
var varTitle = $('<textarea />').html(theString).text();
$('#output').text(varTitle);
return false;
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.m...
Search All Fields In All Tables For A Specific Value (Oracle)
...me FROM all_tab_columns WHERE column_name LIKE '%DTN%';
But if the 'DTN' string is just a guess on your part, that probably won't help.
By the way, how certain are you that '1/22/2008P09RR8' is a value selected directly from a single column? If you don't know at all where it is coming from, it c...
What is the proper declaration of main?
...lly named argc and argv, respectively. argv is a pointer to an array of C strings representing the arguments to the program. argc is the number of arguments in the argv array.
Usually, argv[0] contains the name of the program, but this is not always the case. argv[argc] is guaranteed to be a nu...
When do we have to use copy constructors?
...st an example, but you should point out the better solution is to use std::string. The general idea is that only utility classes that manage resources need to overload the Big Three, and that all other classes should just use those utility classes, removing the need to define any of the Big Three.
...
Getting MAC Address
...8927, struct.pack('256s', ifname[:15]))
return ':'.join(['%02x' % ord(char) for char in info[18:24]])
print getHwAddr('eth0')
This is the Python 3 compatible code:
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import fcntl
import socket
import struct
def getHwAddr(ifname):
s = socke...