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How can I use “sizeof” in a preprocessor macro?
...ou can use following macro:
#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
Usage:
BUILD_BUG_ON( sizeof(someThing) != PAGE_SIZE );
This article explains in details why it works.
3. MS-specific
On Microsoft C++ compiler you can use C_ASSERT macro (requires #include &...
startsWith() and endsWith() functions in PHP
How can I write two functions that would take a string and return if it starts with the specified character/string or ends with it?
...
Node.js: printing to console without a trailing newline?
...me line, for instance in a countdown, you could add '\r' at the end of the string.
process.stdout.write("Downloading " + data.length + " bytes\r");
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Is there a way to call a stored procedure with Dapper?
...
end
end
Code:
var parameters = new DynamicParameters();
string pass = EncrytDecry.Encrypt(objUL.Password);
conx.Open();
parameters.Add("@username", objUL.Username);
parameters.Add("@password", pass);
parameters.Add("@RESULT", dbType: DbType.Int32, direction: ParameterDirection.Ret...
Getting only response header from HTTP POST using curl
...
The Following command displays extra informations
curl -X POST http://httpbin.org/post -v > /dev/null
You can ask server to send just HEAD, instead of full response
curl -X HEAD -I http://httpbin.org/
Note: In some cases, server may send different...
Determine version of Entity Framework I am using?
...
internal static string GetEntityFrameworkVersion()
{
var version = "";
var assemblies = System.AppDomain.CurrentDomain.GetAssemblies().Select(x => x.FullName).ToList();
foreach(var asm in assemblies)
{
...
Is there any boolean type in Oracle databases?
...on about what to use instead. See this thread on asktom. From recommending CHAR(1) 'Y'/'N' they switch to NUMBER(1) 0/1 when someone points out that 'Y'/'N' depends on the English language, while e.g. German programmers might use 'J'/'N' instead.
The worst thing is that they defend this stupid deci...
Find region from within an EC2 instance
...
Get pure string with only the region name: ec2-metadata --availability-zone | sed 's/placement: \(.*\).$/\1/'
– nahsh
Jun 6 '18 at 11:58
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What is the maximum characters for the NVARCHAR(MAX)?
...
From MSDN Documentation
nvarchar [ ( n | max ) ]
Variable-length Unicode string data. n defines the string length and can be a value from 1 through 4,000. max indicates that the maximum storage size is 2^31-1 bytes (2 GB).
The storage size, in bytes, is two times the actual length of data entered ...
Java: notify() vs. notifyAll() all over again
...llowing sequence of events occurs - deadlock results:
STEP 1:
- P1 puts 1 char into the buffer
STEP 2:
- P2 attempts put - checks wait loop - already a char - waits
STEP 3:
- P3 attempts put - checks wait loop - already a char - waits
STEP 4:
- C1 attempts to get 1 char
- C2 attempts to get 1 c...