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Delete element in a slice
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@DaveC I do get that error when working with my slices in my project :/
– Tyguy7
Dec 16 '16 at 17:34
3
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Rails migration: t.references with alternative name?
...fy a foreign_key option in the table creation like this ways, it raises an error saying the very table I'm creating doesn't exist... So I suspect it's not really supported by the official API.
– Quv
Nov 7 '17 at 3:53
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How to read an external properties file in Maven
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Thanks for a working example. However, why I got an error of Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:properties-maven-plugin:1.0-alpha-1:read-project-properties (execution: default, phase: initialize)
– WesternGun
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Use of exit() function
... means your program completed successfully, and nonzero values are used as error codes.
There are also predefined macros EXIT_SUCCESS and EXIT_FAILURE, e.g. exit(EXIT_SUCCESS);
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C++静态和多态，亦敌亦友 - C/C++ - 清泛网 - 专注C/C++及内核技术
...代码编译不能通过。显示如下信息：
stawithvir.cpp:19:17: error: ‘static void DerivedAgain::foo()’ cannot be declared
stawithvir.cpp:13:10: error: since ‘virtual void Derived::foo()’ declared in base class
很明显，编译不能通过的原因，是在De...
Interfaces with static fields in java for sharing 'constants'
...tatic import, we should use classes instead of intefaces to re-do the same error as before?! That's silly!
– gizmo
Nov 26 '08 at 13:06
11
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Refresh image with a new one at the same url
...s the image in an <img> tag, otherwise you'll get an "Access Denied" error when trying to call iframe.contentWindow.reload(...).
Pros: Works just like the image.reload() function you wish the DOM had! Allows images to by cached normally (even with in-the-future expiry dates if you want them, ...
Storing money in a decimal column - what precision and scale?
...ee Wikipedia; to paraphrase: The 1906 edition of Probability and Theory of Errors called this 'the computer's rule' ("computers" meaning humans who perform computations).
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Does every Core Data Relationship have to have an Inverse?
...ontext deleteObject:appType];
BOOL saved = [managedObjectContext save:&error];
What we expect is to fail this context save since we have set the delete rule as Deny while relationship is non optional.
But here the save succeeds.
The reason is that we haven't set an inverse relationship. Bec...
Is there any way to kill a Thread?
...eads with id tid'''
if not inspect.isclass(exctype):
raise TypeError("Only types can be raised (not instances)")
res = ctypes.pythonapi.PyThreadState_SetAsyncExc(ctypes.c_long(tid),
ctypes.py_object(exctype))
if res == 0:
...