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Long vs Integer, long vs int, what to use and when?
...Object form of long, and Integer is the object form of int.
The long uses 64 bits. The int uses 32 bits, and so can only hold numbers up to ±2 billion (-231 to +231-1).
You should use long and int, except where you need to make use of methods inherited from Object, such as hashcode. Java.util.col...
How can I pad an int with leading zeros when using cout
... formatting information below.
//
// Print the number "n" in the given "base"
// using exactly "numDigits".
// Print +/- if signed flag "isSigned" is TRUE.
// Use the character specified in "padchar" to pad extra characters.
//
// Examples:
// sprintfNum(pszBuffer, 6, 10, 6, TRUE,...
iPhone: How to get current milliseconds?
...t we can make a function and do as follows
func getCurrentMillis()->Int64{
return Int64(NSDate().timeIntervalSince1970 * 1000)
}
var currentTime = getCurrentMillis()
Though its working fine in Swift 3.0 but we can modify and use the Date class instead of NSDate in 3.0
Swift 3.0
func g...
How do I remove msysgit's right click menu options?
...
64-Bit Windows
From a cmd.exe window, run these commands:
cd "C:\Program Files (x86)\Git\git-cheetah"
regsvr32 /u git_shell_ext64.dll
32-Bit Windows
From a cmd.exe window, run these commands
cd "C:\Program Files\Git\g...
How to identify platform/compiler from preprocessor macros?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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...
Request format is unrecognized for URL unexpectedly ending in
...llowing command line to achieve this...
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -i
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Suppress warning CS1998: This async method lacks 'await'
...ption() { }
public AwaitableNotImplementedException(string message) : base(message) { }
// This method makes the constructor awaitable.
public TaskAwaiter<AwaitableNotImplementedException<TResult>> GetAwaiter()
{
throw this;
}
}
...
What is an SSTable?
...ed in the form of SSTables.
SSTable (directly mapped to GFS) is key-value based immutable storage. It stores chunks of data, each is of 64KB.
Definitions:
Index of the keys: key and starting location
Chunk is a storage unit in GFS, replica management are by chunk
...
What killed my process and why?
...ll have to kill off a process to free some up. The process to be killed is based on a score taking into account runtime (long-running processes are safer), memory usage (greedy processes are less safe), and a few other factors, including a value you can adjust to make a process less likely to be kil...
Lazy Method for Reading Big File in Python?
...piece in iter(read1k, ''):
process_data(piece)
If the file is line-based, the file object is already a lazy generator of lines:
for line in open('really_big_file.dat'):
process_data(line)
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