{"id":30739,"date":"2023-01-17T01:56:52","date_gmt":"2023-01-16T20:26:52","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-c-fgets-segmentation-fault-core-dumped\/"},"modified":"2023-01-17T01:56:52","modified_gmt":"2023-01-16T20:26:52","slug":"solved-c-fgets-segmentation-fault-core-dumped","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-c-fgets-segmentation-fault-core-dumped\/","title":{"rendered":"[Solved] c++ fgets Segmentation fault (core dumped)"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-29236597\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"29236597\" data-parentid=\"29235520\" data-score=\"0\" data-position-on-page=\"2\" 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>It turns out that fd\/fopen was not getting initialized on line 396<\/p>\n<p>The modified code below allowed my program to run:<\/p>\n<p>Here is the code:<\/p>\n<pre><code>393: FILE *fd;\n394: char fd_name[512];\n395: strcpy(fd_name,npb_list[freq][app][thread].file_name);\n396: fd = fopen( fd_name, \"r\"); \/\/ &lt;&lt;- change made to this line\n397: cout &lt;&lt; \"fd_name = \" &lt;&lt; fd_name &lt;&lt; \"\\n\";\n398: char cur_step_buff[4096];\n399: cout &lt;&lt; sizeof(cur_step_buff) &lt;&lt; \"\\n\";\n400: cout &lt;&lt; \u201clocation line 400\\n\u201d; \n401: fgets (cur_step_buff, sizeof cur_step_buff, fd);\n402: int isEnd=0;\n403: int last_step=0;\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved c++ fgets Segmentation fault (core dumped) <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] It turns out that fd\/fopen was not getting initialized on line 396 The modified code below allowed my program to run: Here is the code: 393: FILE *fd; 394: char fd_name[512]; 395: strcpy(fd_name,npb_list[freq][app][thread].file_name); 396: fd = fopen( fd_name, &#8220;r&#8221;); \/\/ &lt;&lt;- change made to this line 397: cout &lt;&lt; &#8220;fd_name = &#8221; &lt;&lt; fd_name &#8230; <a title=\"[Solved] c++ fgets Segmentation fault (core dumped)\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-c-fgets-segmentation-fault-core-dumped\/\" aria-label=\"More on [Solved] c++ fgets Segmentation fault (core dumped)\">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":[324,932],"class_list":["post-30739","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-fgets"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] c++ fgets Segmentation fault (core dumped) - 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-fgets-segmentation-fault-core-dumped\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] c++ fgets Segmentation fault (core dumped) - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] It turns out that fd\/fopen was not getting initialized on line 396 The modified code below allowed my program to run: Here is the code: 393: FILE *fd; 394: char fd_name[512]; 395: strcpy(fd_name,npb_list[freq][app][thread].file_name); 396: fd = fopen( fd_name, &quot;r&quot;); \/\/ &lt;&lt;- change made to this line 397: cout &lt;&lt; &quot;fd_name = &quot; &lt;&lt; fd_name ... 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