String s = “”; String s2 = someUserInputVariale.toLowercase(); // where the user entered in “” Something like that would cause s == s2 to evaluate to false. Lots of code sill create new Strings without exposing the call to new String().
You need not to use std::sort. It can be done in a simpler way: if ( std::adjacent_find( myvector.begin(), myvector.end(), std::not_equal_to<>() ) == myvector.end() ) { std::cout << “All elements are equal each other” << std::endl; }
The fundamental difference, which no other answer seems to have mentioned, is that XML is a markup language (as it actually says in its name), whereas JSON is a way of representing objects (as also noted in its name). A markup language is a way of adding extra information to free-flowing plain text, e.g Here … Read more
This function: Function diffArray( aA, aB ) ‘ !! http://en.wikipedia.org/wiki/Union_%28set_theory%29 ‘ The union of two sets A and B is the collection of points which are in A or ‘ in B (or in both) Dim dicU : Set dicU = CreateObject( “Scripting.Dictionary” ) ‘ !! http://en.wikipedia.org/wiki/Intersection_%28set_theory%29 ‘ the intersection of two sets A and … Read more
FIRST- use difftime to compare: you can simply use difftime() function to compare time and return 1 or -1 as follows: int comparetime(time_t time1,time_t time2){ return difftime(time1,time2) > 0.0 ? 1 : -1; } SECOND- Convert string into time: If you have difficulty to convert string into time_t struct, you can use two functions in … Read more
char arrays or char pointers aren’t really the same thing as string class objects in C++, so this if (option == “foo”) Doesn’t compare the string option to the string literal “foo” it compares the address of option with the address of the string literal “foo”. You need to use one of the many string … Read more
On Python 2, the comparison falls back to the default sort order for dictionaries (Counter is a subclass of dict). Mappings (dictionaries) compare equal if and only if their sorted (key, value) lists compare equal. [5] Outcomes other than equality are resolved consistently, but are not otherwise defined. [6] On Python 3, the comparison raises … Read more
The problem is in your comparison: if ((-1) < SIZE) sizeof typically returns an unsigned long, so SIZE will be unsigned long, whereas -1 is just an int. The rules for promotion in C and related languages mean that -1 will be converted to size_t before the comparison, so -1 will become a very large … Read more
This is generally (i.e., always) a bad idea. As you suspected, the comparison from 3 to 3.0000001 will indeed fail. What most people do, if an int-float comparison is really necessary, is pick some threshold of tolerance and go with that, like so: int x = 3; float y = 3.0; // some code here … Read more
It all depends on the specific problem domain. Yes, using relative error will be more correct in the general case, but it can be significantly less efficient since it involves an extra floating-point division. If you know the approximate scale of the numbers in your problem, using an absolute error is acceptable. This page outlines … Read more