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How to convert std::string to LPCSTR?
...u can ignore the L (long) part of the names -- it's a holdover from 16-bit Windows.
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PDO MySQL: Use PDO::ATTR_EMULATE_PREPARES or not?
...h they are cached. In my experience the query cache isn't often a very big win anyway. Queries and schemas need special construction to make maximum use of the cache. Often application-level caching ends up being necessary anyway in the long run.
Native prepares doesn't make any difference for secur...
Best way to use PHP to encrypt and decrypt passwords? [duplicate]
...se this class to store sensitive data in sessions, and I modified a little bit, I added a constructor: function __construct() { $this->skey = md5(session_name()); }. I think in this way it's a little bit more secure :)
– Briganti
May 13 '12 at 8:11
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max value of integer
In C, the integer (for 32 bit machine) is 32 bits, and it ranges from -32,768 to +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
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Which is faster : if (bool) or if(int)?
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Makes sense to me. Your compiler apparently defines a bool as an 8-bit value, and your system ABI requires it to "promote" small (< 32-bit) integer arguments to 32-bit when pushing them onto the call stack. So to compare a bool, the compiler generates code to isolate the least significant...
Encrypt & Decrypt using PyCrypto AES 256
...uses a block_size of 32 byte (256 byte) to pad input data but AES uses 128 bit block size. In AES256 the key is 256 bit, but not the block size.
– Tannin
Dec 24 '15 at 13:29
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Get MIME type from filename extension
... custom dictionary that exposes this method, so you should invoke the following to add mappings (never tested tho, but should prob. work).
Anyway, when using reflection to add MIME types, be aware that since you're accessing a private field, its name might change or even be totally removed, so you ...
What are the mechanics of short string optimization in libc++?
...nt architectures?
In the short form, there are 3 words to work with:
1 bit goes to the long/short flag.
7 bits goes to the size.
Assuming char, 1 byte goes to the trailing null (libc++ will always store a trailing null behind the data).
This leaves 3 words minus 2 bytes to store a short string...
maximum value of int
...estion but maybe someone can use this solution:
int size = 0; // Fill all bits with zero (0)
size = ~size; // Negate all bits, thus all bits are set to one (1)
So far we have -1 as result 'till size is a signed int.
size = (unsigned int)size >> 1; // Shift the bits of size one position to ...
WAMP/XAMPP is responding very slow over localhost
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I had the same problem running on Windows 8 running on 64bit. Apache is really slow but when you press F5 many times it goes ok. In the end i after doing many things managed to solve it. Right now it works fast.
Try the following tasks to increase the perfo...