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How to generate a random number in C++?
...e of rand() values read after that in both applications.
However in your example application pseudo-random sequence consists only of one element - the first element of a pseudo-random sequence generated from seed equal to current time of second precision. What do you expect to see on output then?
Ob...
Is multiplication and division using shift operators in C actually faster?
...with the core i7:
(from http://software.intel.com/en-us/forums/showthread.php?t=61481)
The latency is 1 cycle for an integer addition and 3 cycles for an integer multiplication. You can find the latencies and thoughput in Appendix C of the "Intel® 64 and IA-32 Architectures Optimization Refere...
How to print a query string with parameter values when using Hibernate
...he the following categories:
org.hibernate.SQL - set to debug to log all SQL DML statements as they are executed
org.hibernate.type - set to trace to log all JDBC parameters
So a log4j configuration could look like:
# logs the SQL statements
log4j.logger.org.hibernate.SQL=debug
# Logs the...
Check if Python Package is installed
What's a good way to check if a package is installed while within a Python script? I know it's easy from the interpreter, but I need to do it within a script.
...
How to get the name of enumeration value in Swift?
...tring's init(_:) initializer or string interpolation syntax. So for your example:
enum City: Int {
case Melbourne = 1, Chelyabinsk, Bursa
}
let city = City.Melbourne
print(city)
// prints "Melbourne"
let cityName = "\(city)" // or `let cityName = String(city)`
// cityName contains "Melbourn...
How are Python's Built In Dictionaries Implemented?
...hat is based on the hash of the key. CPython initially uses i = hash(key) & mask (where mask = PyDictMINSIZE - 1, but that's not really important). Just note that the initial slot, i, that is checked depends on the hash of the key.
If that slot is empty, the entry is added to the slot (by entry...
Cleaning up the iPhone simulator
...wered Mar 28 '09 at 2:59
PyjamaSamPyjamaSam
10.3k33 gold badges2929 silver badges2020 bronze badges
...
BAT file: Open new cmd window and execute a command in there
...ing gets a little more complicated with spaces in the arguments. See the examples below. Note the use of nested double quotes in some examples.
Examples:
Run a program and pass a filename parameter:
CMD /c write.exe c:\docs\sample.txt
Run a program and pass a long filename:
CMD /c write.exe "...
Trying to login to RDP using AS3
...se ? 0xb : 0x3) : 0);
dataBuffer.writeInt(0); // unknown
if (true && (num_channels > 0)) {
trace(("num_channels is", num_channels));
dataBuffer.writeShort(SEC_TAG_CLI_CHANNELS); // out_uint16_le(s,
// SEC_TAG_CLI_CHANNELS);
dataBuffer.writeShort(num...
Is returning by rvalue reference more efficient?
for example:
2 Answers
2
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