{"id":1272,"date":"2022-08-30T15:15:09","date_gmt":"2022-08-30T15:15:09","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2013\/11\/10\/problem-about-divide-by-zero-collection-of-common-programming-errors\/"},"modified":"2022-08-30T15:15:09","modified_gmt":"2022-08-30T15:15:09","slug":"problem-about-divide-by-zero-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2022\/08\/30\/problem-about-divide-by-zero-collection-of-common-programming-errors\/","title":{"rendered":"problem about divide-by-zero-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/4d83b09b59ebada46dc982cb0bc66fc8?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nMathew Foscarini<br \/>\nprogramming-languages error-handling divide-by-zero<br \/>\nI&#8217;m in the middle of developing a new programming language to solve some business requirements, and this language is targeted at novice users. So there is no support for exception handling in the language, and I wouldn&#8217;t expect them to use it even<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/270c9c933954bb5af9238e5ec98c6446?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nbraindead<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\njava divide-by-zero<br \/>\nThe following compiles fine in my Eclipse:final int j = 1\/0; \/\/ compiles fine!!! \/\/ throws ArithmeticException: \/ by zero at run-timeJava prevents many &#8220;dumb code&#8221; from even compiling in the first place (e.g. &#8220;Five&#8221; instanceof Number doesn&#8217;t compile!), so the fact this didn&#8217;t even generate as much as a warning was very surprising to me. The intrigue deepens when you consider the fact that constant expressions are allowed to be o<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nsignals posix divide-by-zero sigfpe<br \/>\nI have a program which deliberately performs a divide by zero (and stores the result in a volatile variable) in order to halt in certain circumstances. However, I&#8217;d like to be able to disable this halting, without changing the macro that performs<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/639ced0d6d8b40ff2472650a8e349145?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nJim<br \/>\ntheoretical divide-by-zero<br \/>\nTo be clear, I am not looking for NaN or infinity, or asking what the answer to x\/0 should be. What I&#8217;m looking for is this:Based on how division is performed in hardware (I do not know how it is done), if divisio<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nc++ c implementation undefined-behavior divide-by-zero<br \/>\nRegarding division by zero, the standards say:C99 6.5.5p5 &#8211; The result of the \/ operator is the quotient from the division of the first operand by the second; the result of the % operator is the remainder. In both operations, if the value of the second operand is zero, the behavior is undefined.C++03 5.6.4 &#8211; The binary \/ operator yields the quotient, and the binary % operator yields the remainde<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nc++ visual-c++ compiler divide-by-zero<br \/>\nAccording to C++ Standard (5\/5) dividing by zero is undefined behavior. Now consider this code (lots of useless statements are there to prevent the compiler from optimizing code out):int main() {char buffer[1] = {};int len = strlen( buffer );if( len \/ 0 ) {rand();} }Visual C++ compiles the if-statement like this:sub eax,edx cdq xor ecx,ecx idiv eax,ecx test eax,eax je<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/99239814919612b7bc4e6de9e219027b?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nNeil Traft<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nc# divide-by-zero<br \/>\nC# novice here, when the int &#8216;max&#8217; below is 0 I get a divide by zero error, I can see why this<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\ninteger division integer-division divide-by-zero<br \/>\nConsider integer divisiona = bq + rwhere a, b, q, r are respectively: dividend, divisor, quotient, and remainder. Particularly when b = 0, there is no unique b that satisfies the equation for a given a, and hence it makes sense that<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nmath division divide-by-zero<br \/>\nI have come across this problem in a calculation I do in my code, where the divisor is 0 if the divident is 0 too. In my code I return 0 for that case. I am wonde<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\nc++ mod divide-by-zero<br \/>\nWhy is X % 0 an invalid expression?I always t<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/i.stack.imgur.com\/sCrda.jpg?s=32&amp;g=1\" \/><br \/>\nsgar91<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/9ecee9b6a13830103b03489fe6b817ab?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nTertium<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/52a63fa4169f785d9e3ba7a8d3506919?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAziz Shaikh<br \/>\ndesign user-interface reporting divide-by-zero<br \/>\nWhat is the best way (most intuitive to users) or best practice for displaying the results of a divide by 0 error when doing reporting? Within the report, I capture this error, however, when displaying it on a human readabl<\/li>\n<\/ul>\n<p id=\"rop\"><small>Originally posted 2013-11-10 00:13:36. <\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Mathew Foscarini programming-languages error-handling divide-by-zero I&#8217;m in the middle of developing a new programming language to solve some business requirements, and this language is targeted at novice users. So there is no support for exception handling in the language, and I wouldn&#8217;t expect them to use it even braindead Aziz Shaikh java divide-by-zero The following [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1272","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=1272"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/1272\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=1272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=1272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=1272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}