Recent questions tagged comparison

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comparison - Is comparing two void pointers to different objects defined in C++?

Inspired by this answer about dynamic cast to void*: ... bool eqdc(B* b1, B *b2) { return dynamic_cast<void ... to a valid object/memory area? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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516 views

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comparison - Is it safe to compare strings with 'greater than' and 'less than' in MySQL?

MySQL (5.1.41-3ubuntu12.10-log) seems to give predictable results on string comparison using > (greater ... dependable cross-platform feature? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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533 views

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comparison - Simple Comparing of two texts in R

I want to compare two texts to similarity, therefore i need a simple function to list clearly and chronologically ... i get none results. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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comparison - Is it possible to compare two Objective-C blocks by content?

float pi = 3.14; float (^piSquare)(void) = ^(void){ return pi * pi; }; float (^piSquare2)(void) ... want it to behave like -isEqualToString... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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511 views

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comparison - When to use Android PopupWindow vs Dialog

I'm unclear about when to use PopupWindow vs Dialog. Any insight would be much appreciated. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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566 views

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comparison - When to use Android PopupWindow vs Dialog

I'm unclear about when to use PopupWindow vs Dialog. Any insight would be much appreciated. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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693 views

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comparison - what happens when you compare two strings in python

When comparing strings in python e.g. if "Hello" == "Hello": #execute certain code I am curious about what ... than redundancy in lines of code See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

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comparison - What is the disadvantage to using a MySQL longtext sized field when every entry will fit within a mediumtext sized field?

What is the disadvantage to using a MySQL longtext sized field when every entry will fit within a mediumtext sized ... ?" hence the question. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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589 views

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comparison - Comparing NaN values for equality in Javascript

I need to compare two numeric values for equality in Javascript. The values may be NaN as well. I've come up ... it more concise. Any ideas? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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466 views

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comparison - What are the differences between LLVM and java bytecode?

I dont understand the difference between LLVM and the java (bytecode), what are they? -edit- by 'what are they' ... not what are LLVM and java. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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398 views

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comparison - Comparing sound files if not completely identical

Is there any way to programatically compare two sound files to determine if they are identical, or nearly ... not be completely identical. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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comparison - What are the general rules for comparing different data types in C?

Lets say I have the following scenarios: int i = 10; short s = 5; if (s == i){ do stuff... } else if ... on the left? In this case int to short? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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486 views

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comparison - How to elegantly compare tuples in Swift?

I do have 2 different tuples of type (Double, Double): let tuple1: (Double, Double) = (1, 2) let ... a more elegant solution to this problem? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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439 views

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comparison - Why use !== FALSE to check stripos in php?

Here is the code I am looking at. foreach ($header as $idx => $field) { if (stripos($field, 'foo') !== false) ... )), but why do it this way? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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406 views

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comparison - Compare two objects with a check for null

Is there a method in the JDK that compares two objects for equality, accounting for nulls? Something like this ... to exist already somewhere. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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659 views

1 answer

comparison - Comparing two matrices in Matlab

I have two matrices x and y, both are results from different algorithms/routines that are supposed to calculate ... in advance for the advices. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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comparison - Javascript: Comparing two float values

I have this JavaScript function: Contrl.prototype.EvaluateStatement = function(acVal, cfVal) { var cv = parseFloat( ... false! Any ideas why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

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comparison - What is the difference between == and = in Prolog?

Can someone explain the difference between the == and the = operator in Prolog? I know that X = Y means X ... if they are not currently unified? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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706 views

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comparison - c# How to find if two objects are equal

I want to know the best way to compare two objects and to find out if they're equal. I'm overriding both ... I have that will resolve my issue? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

1 answer

comparison - Value for epsilon in Python

Is there a standard value for (or method for obtaining) epsilon in Python? I need to compare floating point ... there an equivalent in Python? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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549 views

1 answer

comparison - How to properly compare decimal values in C#?

I come from a background in C++, and I know that you cannot accurately compare floats for equality. ... recommended solution to this problem? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

1 answer

comparison - Why does 4 < '3' return True in Python 2?

Why does 4 < '3' return True in Python 2? Is it because when I place single quotes around a number ... and strings are bigger than numbers? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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525 views

1 answer

comparison - Interview question: In php, is 123==0123?

I have answered it is false. then he asked why? i couldn't answer. Can anyone make the answer? I am very interested to learn it. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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818 views

1 answer

comparison - Comparing integer Arrays in Java. Why does not == work?

I'm learning Java and just came up with this subtle fact about the language: if I declare two integer Arrays with ... ); } } Thanks in advance! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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576 views

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comparison - When is the `==` operator not equivalent to the `is` operator? (Python)

I noticed I can use the == operator to compare all the native data types (integers, strings, booleans, floating ... EDIT: I'm using Python 3 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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550 views

1 answer

comparison - Comparing Numbers in Java

In Java, all numeric types extend from java.lang.Number. Would it be a good idea to have a method like the ... such as apache commons are ok) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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603 views

1 answer

comparison operators - JavaScript equality transitivity is weird

I've been reading Douglas Crockford's JavaScript: The Good Parts, and I came across this weird ... transitivity considered in JavaScript? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

1 answer

comparison - Why is Java's Double.compare(double, double) implemented the way it is?

I was looking at the implementation of compare(double, double) in the Java standard library (6). It reads: public ... to know how this works. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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