When adding two positive values Int32with a theoretical result greater than Int32.MaxValue, can I expect that the overflow value is always negative?
Int32
Int32.MaxValue
I want to do this as a way to check for overflow without using the checked context and handling exceptions (for example, it is suggested here: http://sandbox.mc.edu/~bennet/cs110/tc/orules.html ), but is this behavior guaranteed?
From what I have read so far, an integer overflow has been signed in C # specific behavior ( Is the behavior of an overflow of an integer type C # /. NET defined (unlike C / C ++) and Int32is two-component, so I would grateful for someone who would better understand this topic than me to test it.
UpdateQuote from link 1:
The rules for overflow detection in the sum of the two additions are simple:If the sum of two positive numbers gives a negative result, the amount is full.If the sum of two negative numbers gives a positive result, the amount is full.Otherwise, the amount is not overflowed.
The rules for overflow detection in the sum of the two additions are simple:
Rule number 2 of
http://sandbox.mc.edu/~bennet/cs110/tc/orules.html
, .
:
int a = int.MinValue; int b = int.MinValue; unchecked { // 0 Console.Write(a + b); }
№ 1
checked, , . , , , checked , unchecked. . , checked, unchecked, , , , .
checked
unchecked
, , , unchecked.
Source: https://habr.com/ru/post/1648660/More articles:Converting a File object to an Image object in JavaScript - javascriptWhat is a Docker tag (looking for a definition)? - dockerRealm.js: saving unstructured object as properties - react-nativeHow to remove Java annotation in Runtime (possibly using Reflection)? - javaCassandra captures magazine clarification - cassandraКак заменить источник предварительной выборки в Bloodhound альтернативой "реального времени"? - python-2.7symfony / FOSRestBundle: empty JSON response (using serializer containing symfony) - jsonWhy do I need to initialize a new Random () with unchecked (Environment.TickCount * 31)? - c #Apk signing not recognized - androidGoogle Script Library: Is the project key out of date? - deprecatedAll Articles