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Is optimisation level -O3 dangerous in g++?
...you want to take optimization into the extreme, you can tweak in gcc via --param the costs associated with certain optimizations. Additionally note that gcc now has the ability to put attributes at functions that control optimization settings just for these functions, so when you find you have a pro...
When should std::move be used on a function return value? [duplicate]
...t or would be
met save for the fact that the source object is a function parameter,
and the object to be copied is designated by an lvalue, overload
resolution to select the constructor for the copy is first performed as
if the object were designated by an rvalue.
return foo; is a case of...
How to check command line parameter in “.bat” file?
...o have a ".bat" file where I need to check if user enters any command-line parameter or not. If does then if the parameter equals to -b then I will do something otherwise I will flag "Invalid input". If user does not enter any command-line parameter then I will do something. I have created follo...
How do I flag a method as deprecated in Objective-C 2.0?
...
- (void)myDeprecatedMethod __deprecated;
- (int)methodNameDeprecated:(int)param __deprecated;
Works too on classes
__deprecated
@interface MyDeprecatedClass
// ... some properties and methods ...
@end
share
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Perform Segue programmatically and pass parameters to the destination view
...Segue:sender: method is called in any case and this is where you pass your parameters across.
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How can I see the entire HTTP request that's being sent by my Python application?
...quest.method r.request.send
r.request.config r.request.params r.request.sent
r.request.cookies r.request.path_url r.request.session
r.request.data r.request.prefetch r.request.timeout
r.request.deregister_hook r.request.proxies ...
C# Pass Lambda Expression as Method Parameter
...
Use a Func<T1, T2, TResult> delegate as the parameter type and pass it in to your Query:
public List<IJob> getJobs(Func<FullTimeJob, Student, FullTimeJob> lambda)
{
using (SqlConnection connection = new SqlConnection(getConnectionString())) {
connect...
How to get exit code when using Python subprocess communicate method?
...org/3/library/subprocess.html. Note that .wait() takes an optional timeout param which can be convenient.
– gg99
Mar 12 '19 at 11:39
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How can I restart a Java application?
...ents() will only give you the input arguments passed to the JVM. It misses parameters passed to your application. e.g., java -jar start.jar -MISSED_PARAM=true. On an oracle jvm, you can retrieve those parameters using System.getProperty("sun.java.command").
– Chris2M
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Android Shared preferences for creating one time activity (example) [closed]
...t SharedPreferences data
// If value for key not exist then return second param value - In this case null
boolean userFirstLogin= pref.getBoolean("key_name1", true); // getting boolean
int pageNumber=pref.getInt("key_name2", 0); // getting Integer
float amount=pref.getFloat("key_name3...