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Why unsigned integer is not available in PostgreSQL?
... unsigned integer literals would be super useful though. Or even just a to_char pattern.
– Bergi
Sep 21 '19 at 12:51
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C/C++ Struct vs Class
...bjects. X AVOID defining a struct unless the type has all of the following characteristics: 1. It logically represents a single value, similar to primitive types (int, double, etc.). 2. It has an instance size under 16 bytes. 3. It is immutable.
– Abhijeet
De...
Is short-circuiting logical operators mandated? And evaluation order?
...h C and C++.
If it wasn't, code like this would not be a common idiom
char* pChar = 0;
// some actions which may or may not set pChar to something
if ((pChar != 0) && (*pChar != '\0')) {
// do something useful
}
Section 6.5.13 Logical AND operator of the C99 specificat...
How to write Unicode characters to the console?
I was wondering if it was possible, in a console application, to write characters like ℃ using .NET. When I try to write this character, the console outputs a question mark.
...
jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON
...o the state machine diagram on the JSON website, only escaped double-quote characters are allowed, not single-quotes. Single quote characters do not need to be escaped:
Update - More information for those that are interested:
Douglas Crockford does not specifically say why the JSON specificat...
URL Encoding using C#
...you simply use HttpUtility, as mentioned.
You can also Regex the illegal characters and then replace, but this gets far more complex, as you will have to have some form of state machine (switch ... case, for example) to replace with the correct characters. Since UrlEncode does this up front, it is...
How do I put double quotes in a string in vba?
...IF(Sheet1!A1=0," & CHR(34) & CHR(34) & ",Sheet1!A1)"
*Note: CHAR() is used as an Excel cell formula, e.g. writing "=CHAR(34)" in a cell, but for VBA code you use the CHR() function.
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Simple way to encode a string according to a password?
...ment. Something like:
import base64
def encode(key, string):
encoded_chars = []
for i in xrange(len(string)):
key_c = key[i % len(key)]
encoded_c = chr(ord(string[i]) + ord(key_c) % 256)
encoded_chars.append(encoded_c)
encoded_string = "".join(encoded_chars)
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What does “%.*s” mean in printf?
...f(), rather than hard coding it into the format string, i.e.
void f(const char *str, int str_len)
{
printf("%.*s\n", str_len, str);
}
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What are the differences between the BLOB and TEXT datatypes in MySQL?
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TEXT and CHAR will convert to/from the character set they have associated with time. BLOB and BINARY simply store bytes.
BLOB is used for storing binary data while Text is used to store large string.
BLOB values are treated as binar...