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C++: How to round a double to an int? [duplicate]
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add 0.5 before casting (if x > 0) or subtract 0.5 (if x < 0), because the compiler will always truncate.
float x = 55; // stored as 54.999999...
x = x + 0.5 - (x<0); // x is now 55.499999...
int y = (int)x; // truncated...
How to remove an item from an array in AngularJS scope?
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10 Answers
10
Active
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What is this 'Lambda' everyone keeps speaking of?
...e most important part of the loop, and abstract away the rest:
for (var i=0; i<array.length; i++) {
// do what something useful with array[i]
}
by using the forEach of array objects, becomes:
array.forEach(function (element, index) {
// do something useful with element
// element is...
Is it possible to get the non-enumerable inherited property names of an object?
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}
I tested that on Safari 5.1 and got
> getAllProperties([1,2,3])
["0", "1", "2", "length", "constructor", "push", "slice", "indexOf", "sort", "splice", "concat", "pop", "unshift", "shift", "join", "toString", "forEach", "reduceRight", "toLocaleString", "some", "map", "lastIndexOf", "reduce",...
Why aren't variables declared in “try” in scope in “catch” or “finally”?
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Timo Tijhof
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answered Sep 18 '08 at 18:01
John ChristensenJohn Christensen
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How do you add Boost libraries in CMakeLists.txt?
...ITHREADED ON)
set(Boost_USE_STATIC_RUNTIME OFF)
find_package(Boost 1.45.0 COMPONENTS *boost libraries here*)
if(Boost_FOUND)
include_directories(${Boost_INCLUDE_DIRS})
add_executable(progname file1.cxx file2.cxx)
target_link_libraries(progname ${Boost_LIBRARIES})
endif()
Obvious...
ADB Shell Input Events
...ut keyevent <event_code>
Some possible values for event_code are:
0 --> "KEYCODE_UNKNOWN"
1 --> "KEYCODE_MENU"
2 --> "KEYCODE_SOFT_RIGHT"
3 --> "KEYCODE_HOME"
4 --> "KEYCODE_BACK"
5 --> "KEYCODE_CALL"
6 --> "KEYCODE_ENDCALL"
7 --> "KEYCODE_0"
8 -->...
Is there a way to “autosign” commits in Git with a GPG key?
...ur commits are signed, there is a proposal (branch 'pu' for now, December 2013, so no guarantee it will make it to a git release) to add a config which will take care of that option for you.
Update May 2014: it is in Git 2.0 (after being resend in this patch series)
See commit 2af2ef3 by Nicolas Vi...
Is there any advantage of using map over unordered_map in case of trivial keys?
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answered Feb 4 '10 at 2:43
GManNickGGManNickG
444k4747 gold badges454454 silver badges530530 bronze badges
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