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How to check if a value exists in an array in Ruby
...ber_i(RB_BLOCK_CALL_FUNC_ARGLIST(iter, args))
{
struct MEMO *memo = MEMO_CAST(args);
if (rb_equal(rb_enum_values_pack(argc, argv), memo->v1)) {
MEMO_V2_SET(memo, Qtrue);
rb_iter_break();
}
return Qnil;
}
static VALUE
enum_member(VALUE obj, VALUE val)
{
struct MEMO *memo = MEMO...
Resuming git-svn clone
...ion. After about 6 hours of importing (it's a big repo), my computer went and slept on me. Is there a way to resume the operation without redoing all of the initial work?
...
How do I prevent the iPhone screen from dimming or turning off while my application is running?
...e app need to re-enable the timer when the app has lost focus, or is this handled automatically by the OS?
– Stan James
Oct 21 '14 at 17:10
5
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How do I create delegates in Objective-C?
...
I think you need to cast the unsigned int type to BOOL as the return value of delegate respondsToSelector is of type BOOL.
– Roland
Nov 25 '13 at 8:34
...
Explanation of JSONB introduced by PostgreSQL
...reads it (because it gets an invalid representation). Also, you can safely cast the latter to jsonb within the database.
– pozs
Mar 21 '17 at 9:00
2
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How do I get a class instance of generic type T?
...
java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
– Khan
May 6 at 15:46
...
Is 1.0 a valid output from std::generate_canonical?
...alues happen to round up to IEEE 1.0f but that's just unavoidable when you cast them to IEEE floats. If you want pure mathematical results, use a symbolic computation system; if you are trying to use IEEE floating-point to represent numbers that are within eps of 1, you are in a state of sin.
...
Is there a better alternative than this to 'switch on type'?
...ching-on-types
Short version: TypeSwitch is designed to prevent redundant casting and give a syntax that is similar to a normal switch/case statement. For example, here is TypeSwitch in action on a standard Windows form event
TypeSwitch.Do(
sender,
TypeSwitch.Case<Button>(() => te...
How to get the original value of an attribute in Rails
...
ActiveRecord's attributes_before_type_cast method returns a hash of attributes before typecasting and deserialization have occurred.
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How much is too much with C++11 auto keyword?
...bdas can't be spelled, so auto f = []... is good style. The alternative is casting to std::function but that comes with overhead.
I can't really conceive of an "abuse" of auto. The closest I can imagine is depriving yourself of an explicit conversion to some significant type -- but you wouldn't use...