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C dynamically growing array
...lSize) {
a->array = malloc(initialSize * sizeof(int));
a->used = 0;
a->size = initialSize;
}
void insertArray(Array *a, int element) {
// a->used is the number of used entries, because a->array[a->used++] updates a->used only *after* the array has been accessed.
// Th...
How do I check in SQLite whether a table exists?
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1045
I missed that FAQ entry.
Anyway, for future reference, the complete query is:
SELECT name FR...
Determine .NET Framework version for dll
...t the source code because I believe it has been upgraded to Visual Studio 2008 and changed to .NET framework version 3.5.
1...
Parse (split) a string in C++ using string delimiter (standard C++)
...>=tiger";
std::string delimiter = ">=";
std::string token = s.substr(0, s.find(delimiter)); // token is "scott"
The find(const string& str, size_t pos = 0) function returns the position of the first occurrence of str in the string, or npos if the string is not found.
The substr(size_t p...
How to sleep for five seconds in a batch file/cmd [duplicate]
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Add subdomain to localhost URL
...en (as root) the file /etc/hosts and add a line (or lines) like this:
127.0.0.1 example.com
127.0.0.1 subdomain.example.com
Your computer will now treat both example.com and subdomain.example.com as belonging to itself. If you visit either in your web browser, they will work the same, in pr...
Simplest code for array intersection in javascript
... Ry-♦
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answered Dec 11 '09 at 3:08
Anon.Anon.
49.5k88 gold badges...
Is there XNOR (Logical biconditional) operator in C#?
...te also that this doesn't generalize to bitwise operations, where you want 0x1234 XNOR 0x5678 == 0xFFFFBBB3 (assuming 32 bits). For that, you need to build up from other operations, like ~(A^B). (Note: ~, not !.)
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Return 0 if field is null in MySQL
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Use IFNULL:
IFNULL(expr1, 0)
From the documentation:
If expr1 is not NULL, IFNULL() returns expr1; otherwise it returns expr2. IFNULL() returns a numeric or string value, depending on the context in which it is used.
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