{"id":31988,"date":"2023-01-26T01:47:18","date_gmt":"2023-01-25T20:17:18","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-c-can-not-get-value-from-map\/"},"modified":"2023-01-26T01:47:18","modified_gmt":"2023-01-25T20:17:18","slug":"solved-c-can-not-get-value-from-map","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-c-can-not-get-value-from-map\/","title":{"rendered":"[Solved] c++ can not get value from map"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-56823980\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"56823980\" data-parentid=\"56806173\" 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>Your <code>void Write(const std::string&amp; inString)<\/code> function of <code>OutputMemoryStream<\/code> should not store additional byte of buffer for null terminator because <code>std::string<\/code> will not contain null terminator but if you use <code>c_str()<\/code>, a null terminator will be included in the return from this method. Don&#8217;t get confused with the internal structure of the memory. <code>std::string<\/code> stores the length of the string in its member variable so there is no need of null terminator. The function should be as shown below.<\/p>\n<pre><code>void Write(const std::string&amp; inString)\n{\n    size_t elementCount = inString.size();\n    Write(elementCount);\n    Write(inString.data(), elementCount * sizeof(char));\n}\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">2<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved c++ can not get value from map <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Your void Write(const std::string&amp; inString) function of OutputMemoryStream should not store additional byte of buffer for null terminator because std::string will not contain null terminator but if you use c_str(), a null terminator will be included in the return from this method. Don&#8217;t get confused with the internal structure of the memory. std::string stores &#8230; <a title=\"[Solved] c++ can not get value from map\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-c-can-not-get-value-from-map\/\" aria-label=\"More on [Solved] c++ can not get value from map\">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":[324,834],"class_list":["post-31988","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-dictionary"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] c++ can not get value from map - 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-c-can-not-get-value-from-map\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] c++ can not get value from map - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Your void Write(const std::string&amp; inString) function of OutputMemoryStream should not store additional byte of buffer for null terminator because std::string will not contain null terminator but if you use c_str(), a null terminator will be included in the return from this method. Don&#8217;t get confused with the internal structure of the memory. std::string stores ... 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Don&#8217;t get confused with the internal structure of the memory. std::string stores ... 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