{"id":3397,"date":"2014-03-23T13:52:56","date_gmt":"2014-03-23T13:52:56","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/23\/problem-about-truncation-collection-of-common-programming-errors\/"},"modified":"2014-03-23T13:52:56","modified_gmt":"2014-03-23T13:52:56","slug":"problem-about-truncation-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/23\/problem-about-truncation-collection-of-common-programming-errors\/","title":{"rendered":"problem about truncation-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/e208066867d3d9c32a0a8ec27dbb90c7?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nAdrian<br \/>\nr truncation<br \/>\nAm I missing something?library(truncreg)n &lt;- 10^4 lambda &lt;- 0.3 # Proba y is taken from component 0df &lt;- data.frame(x=rnorm(n)) df$y0 &lt;- pmax(rnorm(n, 10 + df$x, 5), 0) df$y1 &lt;- pmax(rnorm(n, 2 &#8211; 5*df$x, 2), 0) df$component &lt;- ifelse(runif(n) &lt; lambda, 0, 1) df$y &lt;- ifelse(df$component == 0, df$y0, df$y1) # Mixture of censored regressionsplot(df$x, df$y)model &lt;- truncreg(y ~ x, data=df) # All data model.w &lt;- truncreg(y ~ x, data=df, weights=component) # Only com<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/9184179e628ebb8da3dc647e4fbf9dfc?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nDale<br \/>\nc++ truncation<br \/>\nI have just joined a team that has thousands of lines of code like:int x = 0; x=something(); short y=x; doSomethingImportantWith(y); The compiler gives nice warnings saying: Conversion of XX bit type value to &#8220;short&#8221; causes truncation. I&#8217;ve been told that there are no cases where truncation really happens, but I seriously doubt it. Is there a nice way to insert checks into each case having the effect of: if (x&gt;short.max) printNastyError(__FILE,__LINE); before each assignment? Doing this ma<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/5780a1cef01033e7a6d42a93816d1068?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nIra Baxter<br \/>\nwindows logging console truncation<br \/>\nWe build complicated console-based tools that produce a lot of commentary on the console. These tools process a lot of data and so runs are expensive and we don&#8217;t like to do them more often than necessary, especially during testing where we already have to run them repeatedly. During such tests, we often log the result to a file to capture this commentary for inspection:C:&gt; [ourcommand] &gt;log.txt When the application runs to completion, this works great.If the application crashes (illegal mem<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/cbc9296df0e91778d1e74c4898d441fa?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nOldskool<br \/>\nphp string truncation mbstring<br \/>\nMonths ago I made a short code that uses mb_strimwidth() to exactly fit some text into a table cell, putting dots at the end of a truncated string. Now, after some times, I tried to execute that same code and it went out with this error:Fatal error: Call to undefined function mb_strimwidth() in &#8230;I tried to find the mbstring.php file, and when I found the mb_strimwidth() function, I discovered that it is not implemented anymore. How is that possible? But my main question is: how can I get the s<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Adrian r truncation Am I missing something?library(truncreg)n &lt;- 10^4 lambda &lt;- 0.3 # Proba y is taken from component 0df &lt;- data.frame(x=rnorm(n)) df$y0 &lt;- pmax(rnorm(n, 10 + df$x, 5), 0) df$y1 &lt;- pmax(rnorm(n, 2 &#8211; 5*df$x, 2), 0) df$component &lt;- ifelse(runif(n) &lt; lambda, 0, 1) df$y &lt;- ifelse(df$component == 0, df$y0, df$y1) # Mixture of [&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-3397","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3397","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=3397"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/3397\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=3397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=3397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=3397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}