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How to generate gcc debug symbol outside the build target?
...b) help symbol-file
Ref:
https://sourceware.org/gdb/onlinedocs/gdb/Files.html#Files
https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html
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MySQL, update multiple tables with one query
...an read more about joins here: http://dev.mysql.com/doc/refman/5.0/en/join.html. There's also a couple restrictions for ordering and limiting on multiple table updates you can read about here: http://dev.mysql.com/doc/refman/5.0/en/update.html (just ctrl+f "join").
...
What's the difference between SoftReference and WeakReference in Java?
...e
http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/ref/WeakReference.html
Principle: weak reference is related to garbage collection. Normally, object having one or more reference will not be eligible for garbage collection.
The above principle is not applicable when it is weak reference. If ...
Understanding implicit in Scala
...oller action is like
def index = Action{
implicit request =>
Ok(views.html.formpage())
}
if you do not mention request parameter as implicit explicitly then you must have been written-
def index = Action{
request =>
Ok(views.html.formpage()(request))
}
Extension Method
Think, we w...
What are the differences between poll and select?
... good introduction to the effort:
http://scotdoyle.com/python-epoll-howto.html
While this link has some nice graphs showing the benefits of epoll() (you will note that select() is by this point considered so inefficient and old-fashioned that it does not even get a line on these graphs!):
http://...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...omponent didn't work for me. Replacing all the special characters with XML/HTML entities and then converting to the base64 representation was the only way to solve this issue for me. Some code:
base64 = btoa(str.replace(/[\u00A0-\u2666]/g, function(c) {
return '&#' + c.charCodeAt(0) + ';';
...
What breaking changes are introduced in C++11?
... the change was introduced by open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#561 . Although they don't comment on the fact, the "instantiation context" still consists of only "the set of declarations with external linkage declared prior to the point of instantiation of the template specialization...
CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
...h this change, we get:
And here is the full code with this change:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style type="text/css">
/* Positioning */
#box1 { overflow: hidden }
#box2 { position: ...
Is there a way to pass optional parameters to a function?
...ython.org/2/reference/…, c) read docs.python.org/2/reference/expressions.html#calls . Sorry, running out of characters permitted in this comment.
– Jim DeLaHunt
Feb 6 '18 at 19:19
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How to detect when cancel is clicked on file input?
How can I detect when the user cancels a file input using an html file input?
32 Answers
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