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How do I detect unsigned integer multiply overflow?
... addcarry_u8 or subborrow_u64). Their signature is a bit obtuse:
unsigned char _addcarry_u32(unsigned char c_in, unsigned int src1, unsigned int src2, unsigned int *sum);
unsigned char _subborrow_u32(unsigned char b_in, unsigned int src1, unsigned int src2, unsigned int *diff);
c_in/b_in is the c...
Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
16 A...
Split List into Sublists with LINQ
...n Enumerable.Range(1, int.MaxValue)
.Select(x => x + new string('x', 100000))
.Clump(10000).Skip(100).First())
{
Console.Write('.');
}
// OutOfMemoryException
Finally, any implementation should be able to handle out of order iteration of chunks, for example:
En...
Eliminate extra separators below UITableView
When I set up a table view with 4 rows, there are still extra separators lines (or extra blank cells) below the filled rows.
...
Forward declaring an enum in C++
...on unit can't know what storage size will have been chosen - it could be a char or an int, or something else.
From Section 7.2.5 of the ISO C++ Standard:
The underlying type of an enumeration is an integral type that can represent all the enumerator values defined in the enumeration. It is im...
Generate a random alphanumeric string in Cocoa
...ll a method, pass it the length and have it generate a random alphanumeric string.
20 Answers
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How to convert a currency string to a double with jQuery or Javascript?
I have a text box that will have a currency string in it that I then need to convert that string to a double to perform some operations on it.
...
How to pass an object from one activity to another on Android
...ublic class Deneme implements Serializable {
public Deneme(double id, String name) {
this.id = id;
this.name = name;
}
public double getId() {
return id;
}
public void setId(double id) {
this.id = id;
}
public String getName() {
...
How do you convert a JavaScript date to UTC?
...
The toISOString() method returns a string in simplified extended ISO
format (ISO 8601), which is always 24 or 27 characters long
(YYYY-MM-DDTHH:mm:ss.sssZ or ±YYYYYY-MM-DDTHH:mm:ss.sssZ,
respectively). The timezone is always ze...
Padding characters in printf
... justification, but you can just omit subtracting the length of the second string if you want ragged-right lines.
pad=$(printf '%0.1s' "-"{1..60})
padlength=40
string2='bbbbbbb'
for string1 in a aa aaaa aaaaaaaa
do
printf '%s' "$string1"
printf '%*.*s' 0 $((padlength - ${#string1} - ${#st...