{"id":15137,"date":"2022-10-10T13:29:06","date_gmt":"2022-10-10T07:59:06","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-generate-random-password-c\/"},"modified":"2022-10-10T13:29:06","modified_gmt":"2022-10-10T07:59:06","slug":"solved-generate-random-password-c","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-generate-random-password-c\/","title":{"rendered":"[Solved] generate random password [C++]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-45068411\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"45068411\" data-parentid=\"45068212\" data-score=\"1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>You&#8217;re getting only numbers because there&#8217;s no specialization of <code>std::to_string()<\/code> for <code>char<\/code>. So when you do <code>to_string(alphabet[random]))<\/code>, it converts the <code>char<\/code> to <code>int<\/code> (which returns the letter&#8217;s character code) and then converts that to a string. So <code>to_string('a')<\/code> is <code>\"97\"<\/code>, not <code>\"a\"<\/code>.<\/p>\n<p>Instead of an array, you could use a string containing the alphabet. <code>std::string::append()<\/code> allows you to specify a substring to copy from. So you can do:<\/p>\n<pre><code>string alphabet = \"abcdefghijklmnopqrstuvwxyz\";\nint random = rand() % alphabet.size();\npassword.append(alphabet, random, 1);\n<\/code><\/pre>\n<p>This also explains why your password isn&#8217;t the desired length. When it intends to append a character, it&#8217;s instead appending 2 or 3 digit numbers.<\/p>\n<p>Finally, you&#8217;re not clearing <code>password<\/code> each time you want to generate a new password, so you&#8217;re appending to the old password. The simple solution to this is to move the <code>string password;<\/code> declaration inside the first <code>for<\/code> loop.<\/p>\n<p>You should also call <code>srand(time())<\/code> at the beginning of your program, so you&#8217;ll get different passwords every time you run it. Otherwise the program always starts with the same random seed.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">0<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved generate random password [C++] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] You&#8217;re getting only numbers because there&#8217;s no specialization of std::to_string() for char. So when you do to_string(alphabet[random])), it converts the char to int (which returns the letter&#8217;s character code) and then converts that to a string. So to_string(&#8216;a&#8217;) is &#8220;97&#8221;, not &#8220;a&#8221;. Instead of an array, you could use a string containing the alphabet. &#8230; <a title=\"[Solved] generate random password [C++]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-generate-random-password-c\/\" aria-label=\"More on [Solved] generate random password [C++]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324],"class_list":["post-15137","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] generate random password [C++] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-generate-random-password-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] generate random password [C++] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] You&#8217;re getting only numbers because there&#8217;s no specialization of std::to_string() for char. So when you do to_string(alphabet[random])), it converts the char to int (which returns the letter&#8217;s character code) and then converts that to a string. So to_string(&#039;a&#039;) is &quot;97&quot;, not &quot;a&quot;. Instead of an array, you could use a string containing the alphabet. ... 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So when you do to_string(alphabet[random])), it converts the char to int (which returns the letter&#8217;s character code) and then converts that to a string. So to_string('a') is \"97\", not \"a\". Instead of an array, you could use a string containing the alphabet. ... 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