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How to get error message when ifstream open fails
...< "opened " << fileName << std::endl;
}
int main(int argc, char* argv[]) {
try {
process(argv[1]);
} catch (const std::system_error& e) {
std::clog << e.what() << " (" << e.code() << ")" << std::endl;
}
return 0;
}
E...
Does Swift have documentation generation support?
...
New in Xcode 8, you can select a method like this
func foo(bar: Int) -> String { ... }
Then press command + option + / or choose "Structure" - "Add documentation" from Xcode's "Editor" menu, and it will generate the following comments template...
How do you default a new class to public when creating it in Visual Studio?
When I right click in the Solution of a C# Visual Studio project and select Add... > Class... it creates a class without a public modifier. How do I get Visual Studio (2008) to default the class to a public class?
...
How to save an activity state using save instance state?
... usually use this technique to store instance values for your application (selections, unsaved text, etc.).
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Unable to execute dex: Multiple dex files define Lcom/myapp/R$array;
...as OK with Ant).
This is how I fixed it:
Right click on the Project Name
Select Build Path -> Configure Build Path
In Java Build Path, go to the tab Order and Export
Uncheck your .jar library
Only sometimes:
In Order and Export tab I did not have any jar library there, so I have unchecked And...
Generate UML Class Diagram from Java Project [closed]
... sucks. Hard. Instructions want users to prefix all properties with an 'f' char to sniff them. It is destructive, too, and adds a bunch of its own comments to ALL class files. Also, instructions are non-intuitive. If someone can refute my experience (based on the current version in Kepler), please d...
Java 256-bit AES Password-Based Encryption
...
Share the password (a char[]) and salt (a byte[]—8 bytes selected by a SecureRandom makes a good salt—which doesn't need to be kept secret) with the recipient out-of-band. Then to derive a good key from this information:
/* Derive the key, given password and salt. */
SecretKeyFa...
WKWebView not loading local files under iOS 8
...dAccessToURL:] on iOS 9.
When you are moving the web folder to a project, select "Create folder references"
Then use code that is something like this(Swift 2):
if let filePath = NSBundle.mainBundle().resourcePath?.stringByAppendingString("/WebApp/index.html"){
let url = NSURL(fileURLWithPath...
MySQL: @variable vs. variable. What's the difference?
...ialize this variable with a SET statement or inside a query:
SET @var = 1
SELECT @var2 := 2
When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables:
DELIMITER //
CREATE PROCEDURE prc_test (var INT)
BEGIN
DECLARE var2 INT;
SET var2 =...
How to set JVM parameters for Junit Unit Tests?
...agues to set the following:
Windows Preferences / Java / Installed JREs:
Select the proper JRE/JDK (or do it for all of them)
Edit
Default VM arguments: -Xmx1024m
Finish, OK.
After that all test will run with -Xmx1024m but unfortunately you have set it in every Eclipse installation. Maybe you co...