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Is “IF” expensive?
...t it doesn't need once the outcome of the branch is known. This saves the extra memory access of a typical architecture in the event that it branches along the unpredicted path.
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C++ unordered_map using a custom class type as the key
...h values. For example, assuming a key-type like this:
struct Key
{
std::string first;
std::string second;
int third;
bool operator==(const Key &other) const
{ return (first == other.first
&& second == other.second
&& third == other.thir...
Can I set a breakpoint on 'memory access' in GDB?
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Assuming the first answer is referring to the C-like syntax (char *)(0x135700 +0xec1a04f) then the answer to do rwatch *0x135700+0xec1a04f is incorrect. The correct syntax is rwatch *(0x135700+0xec1a04f).
The lack of ()s there caused me a great deal of pain trying to use watchpoints m...
python pip: force install ignoring dependencies
...hon packaging tools: distutils, setuptools, pip. Setuptools (and pip) has "extras", but they must be explicitly selected and installed by the user.
– shadowtalker
Oct 18 '18 at 19:51
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Logger slf4j advantages of formatting with {} instead of string concatenation
Is there any advantage of using {} instead of string concatenation?
5 Answers
5
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Chrome desktop notification example [closed]
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@StepanYakovenko Try the codepen link again. I added an extra else at the end to tell you what the problem is. You probably globally disabled notifications like me :\
– mpen
Mar 20 '19 at 0:45
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Maven2: Best practice for Enterprise Project (EAR file)
... prompted me to make a selection by entering a number or entering a search string e.g.:
513: remote -> org.xwiki.commons:xwiki-commons-component-archetype
514: remote -> org.xwiki.rendering:xwiki-rendering-archetype-macro
515: remote -> org.zkoss:zk-archetype-component
516: remote -> or...
How Scalable is SQLite? [closed]
...nd on the data used, and their format. I've had some tough experience with extra long tables (GPS records, one record per second). Experience showed that SQLite would slow down in stages, partly due to constant rebalancing of the growing binary trees holding the indexes (and with time-stamped indexe...
Send an Array with an HTTP Get
.... There is no definitive standard for this. See also a.o. Wikipedia: Query string:
While there is no definitive standard, most web frameworks allow multiple values to be associated with a single field (e.g. field1=value1&field1=value2&field2=value3).[4][5]
Generally, when the target se...
How can prepared statements protect from SQL injection attacks?
...l commands, it will not be executed. Also, if the id is a number, then the string content will generate a report or value zero.
– Soley
Sep 7 '15 at 11:24
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