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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...
How can I get a precise time, for example in milliseconds in Objective-C?
...o 32-bit integer fields. You can use UnsignedWideToUInt64() instead of the cast if you prefer.
– Ken Thomases
Aug 24 '13 at 0:14
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How do I get a class instance of generic type T?
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java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
– Khan
May 6 at 15:46
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How do I create delegates in Objective-C?
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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
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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.
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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 to get the original value of an attribute in Rails
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ActiveRecord's attributes_before_type_cast method returns a hash of attributes before typecasting and deserialization have occurred.
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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 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...
Move an array element from one array position to another
...ve2 = function(pos1, pos2) {
// local variables
var i, tmp;
// cast input parameters to integers
pos1 = parseInt(pos1, 10);
pos2 = parseInt(pos2, 10);
// if positions are different and inside array
if (pos1 !== pos2 && 0 <= pos1 && pos1 <= this.lengt...