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How to get the error message from the error code returned by GetLastError()?
...fter a Windows API call, how can I get the last error message in a textual form?
11 Answers
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Inheriting constructors
...1 standard, there is a constructor inheritance using using (pun intended). For more see Wikipedia C++11 article. You write:
class A
{
public:
explicit A(int x) {}
};
class B: public A
{
using A::A;
};
This is all or nothing - you cannot inherit only some constructors, if you wr...
Download Github pull request as unified diff
...mmit as a diff/patch file, just add .diff or .patch to the end of the URL, for example:
https://github.com/weppos/whois/pull/90
https://github.com/weppos/whois/pull/90.diff
https://github.com/weppos/whois/pull/90.patch
sh...
Splitting String with delimiter
... trying to split a string 1128-2 so that I can have two separate values. For example, value1: 1128 and value2: 2, so that I can then use each value separately. I have tried split() but with no success. Is there a specific way Grails handles this, or a better way of doing it?
...
How to configure robots.txt to allow everything?
...ike the Googlebot). That said, unrecognized fields have to be ignored, and for bots that don’t recognize Allow, the result would be the same in this case anyway: if nothing is forbidden to be crawled (with Disallow), everything is allowed to be crawled.
However, formally (per the original spec) it...
Regex to replace everything except numbers and a decimal point
...
This is great to convert already-formatted numbers like money to a computable float.
– lu1s
Jan 12 '17 at 0:15
add a comment
...
gitignore all files of extension in directory
...les to find why their file is being ignored. Some prefer having all this information in one .gitignore file stored at repo root directory.
– haren
Mar 24 '16 at 15:58
1
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How to check if an intent can be handled from some activity?
...
edwardxu's solution works perfectly for me.
Just to clarify a bit:
PackageManager packageManager = getActivity().getPackageManager();
if (intent.resolveActivity(packageManager) != null) {
startActivity(intent);
} else {
Log.d(TAG, "No Intent available...
python numpy machine epsilon
...
An easier way to get the machine epsilon for a given float type is to use np.finfo():
print(np.finfo(float).eps)
# 2.22044604925e-16
print(np.finfo(np.float32).eps)
# 1.19209e-07
share
...
How to Use Order By for Multiple Columns in Laravel 4?
...
Simply invoke orderBy() as many times as you need it. For instance:
User::orderBy('name', 'DESC')
->orderBy('email', 'ASC')
->get();
Produces the following query:
SELECT * FROM `users` ORDER BY `name` DESC, `email` ASC
...