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In CMake, how can I test if the compiler is Clang?
...so work correctly if a compiler wrapper like ccache is used.
As of CMake 3.0.0 the CMAKE_<LANG>_COMPILER_ID value for Apple-provided Clang is now AppleClang. To test for both the Apple-provided Clang and the regular Clang use the following if condition:
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
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+100
I created a test suite, precisely to explore these issues (and more) (archived copy).
And in that sense, you can see the performance...
jQuery: Difference between position() and offset()
...or example, with this document:
<div style="position: absolute; top: 200; left: 200;">
<div id="sub"></div>
</div>
Then the $('#sub').offset() will be {left: 200, top: 200}, but its .position() will be {left: 0, top: 0}.
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Less aggressive compilation with CSS3 calc
The Less compilers that I'm using ( OrangeBits and dotless 1.3.0.5 ) are aggressively translating
4 Answers
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Is there a version of JavaScript's String.indexOf() that allows for regular expressions?
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130
Combining a few of the approaches already mentioned (the indexOf is obviously rather simple), I ...
Create a pointer to two-dimensional array
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10 Answers
10
Active
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Printf width specifier to maintain precision of floating-point value
...n:
#include <float.h>
int Digs = DECIMAL_DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
Let...
JdbcTemplate queryForInt/Long is deprecated in Spring 3.2.2. What should it be replaced by?
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110
What I think is that somebody realized that the queryForInt/Long methods has confusing semantics...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
...he variable to a default value. From the Scala Language Specification:
0 if T is Int or one of its subrange types,
0L if T is Long,
0.0f if T is Float,
0.0d if T is Double,
false if T is Boolean,
() if T is Unit,
null for all other types T.
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How to remove last n characters from every element in the R vector
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answered May 1 '14 at 17:50
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