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How to see which flags -march=native will activate?
I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using?
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General suggestions for debugging in R
...neRestart(expr, restarts[[1]])
7: doWithOneRestart(return(expr), restart)
Selection:
You can then step into any of those frames to see what was happening when the warning was thrown.
To reset the above options to their default, enter
options(error = NULL, warn = 0)
As for the specific warning...
PHP memory profiling
...01-29) which can be used in Qcachegrind or similar tool. Just make sure to select the memory option :)
From the docs:
Since Xdebug 2.6, the profiler also collects information about how much memory is being used, and which functions aGnd methods increased memory usage.
I'm not familiar with th...
Remove tracking branches no longer on remote
...ddition, it will work if you use a "Squash and Merge" workflow, unlike the selected answer.
– Jake Levitt
May 22 '18 at 13:33
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ActiveRecord: size vs count
... don't know what you are doing, use size...
count
Resolves to sending a Select count(*)... query to the DB. The way to go if you don't need the data, but just the count.
Example: count of new messages, total elements when only a page is going to be displayed, etc.
length
Loads the required dat...
How can I add some small utility functions to my AngularJS application?
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Having utility functions as a service allows you to selectively access them in your controllers.. if no controllers use them, then the service won't be instantiated.
– StuR
Feb 28 '14 at 14:50
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
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Rollback... will prompt you to select a folder to rollback, ie, it will work on specific folders, and you can rollback to labels or changlists or dates. Back out works on the files in specific changelists.
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Using npm behind corporate proxy .pac
...hat I did is as follows:
Used Fiddler, with "Automatically Authenticate" selected
In fiddler custom rules, i added
if (m_AutoAuth) {oSession["X-AutoAuth"] = "domain\\username:password";}
Finally in npm i set the proxy to http://localhost:8888
This worked fine.
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Error: could not find function … in R
...itially configured RStudio to use ROxygen to make the documentation -- and selected the configuration where ROxygen would write my NAMESPACE file for me, which kept erasing my edits. So, in my instance I unchecked NAMESPACE from the Roxygen configuration and added exportPattern(".") to NAMESPACE to...
Code First: Independent associations vs. Foreign key associations?
...r = new Order { Id = 1, Customer = db.Customers.Find(1) }; Or you can use Select method to load the customer from db context. This works with independent association.
– tala9999
Jan 28 '16 at 15:05
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