{"id":9289,"date":"2022-09-18T05:23:33","date_gmt":"2022-09-17T23:53:33","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-array-struct-not-printing-correctly\/"},"modified":"2022-09-18T05:23:33","modified_gmt":"2022-09-17T23:53:33","slug":"solved-array-struct-not-printing-correctly","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-array-struct-not-printing-correctly\/","title":{"rendered":"[Solved] Array Struct Not Printing Correctly"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-41050823\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"41050823\" data-parentid=\"41050360\" data-score=\"0\" 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>In every function you are starting from array[-1], and in C\/C++ you won&#8217;t get an exception it will just take what is in memory before the array.<\/p>\n<p>Change [student-1] to [student] and initialise sum to 0.<\/p>\n<p>Advice for future: don&#8217;t use &#8216;magic numbers&#8217; in loops, declare them as a variable and then you can just change it in one place, less likely error prompt behaviour.<\/p>\n<p>Compiled with VS 2015:<\/p>\n<pre><code>#include &lt;iostream&gt;\n#include &lt;fstream&gt;\n#include &lt;cctype&gt;\n#include &lt;cstring&gt;\n#include &lt;iomanip&gt;\n#include &lt;string&gt;\n\nusing namespace std;\n\ndouble calcAvg(double[][6], int);\ndouble calcLow(double[][6], int);\ndouble calcHigh(double[][6], int);\n\nstruct studInfo \n{\n  string fname;\n  string lname;\n  double low;\n  double high;\n  double average;\n} ;\n\nint main() \n{\n  ifstream input;\n  ifstream input2;\n  double scores[9][6];\n  string firstName;\n  string lastName;\n  int count = 0;\n\n  struct studInfo students[9];\n\n  input.open(\"cis_testGrades.txt\");\n\n  while (!input.eof()) \n  {\n    for (int a = 0; a &lt; 9; a++) \n    {\n      cout &lt;&lt; \"Student \" &lt;&lt; a + 1 &lt;&lt; \": \";\n      for (int b = 0; b &lt; 6; b++) \n      {\n        input &gt;&gt; scores[a][b];\n        cout &lt;&lt; scores[a][b] &lt;&lt; \" \";\n      }\n      cout &lt;&lt; \" \" &lt;&lt; endl;\n    }\n  }\n  input.close();\n\n  \/*cout &lt;&lt; calcAvg(scores, 9) &lt;&lt; endl;\n  cout &lt;&lt; calcHigh(scores, 9) &lt;&lt; endl;\n  cout &lt;&lt; calcLow(scores, 9) &lt;&lt; endl;*\/\n\n  input2.open(\"cis_students.txt\");\n\n  while (!input2.eof()) \n  {\n    input2 &gt;&gt; firstName;\n    students[count].fname = firstName;\n    \/\/strcpy(students[count].fname, firstName);\n\n    input2 &gt;&gt; lastName;\n    students[count].lname = lastName;\n    \/\/strcpy(students[count].lname, lastName);\n\n    students[count].low = calcLow(scores, count);\n\n    students[count].high = calcHigh(scores, count);\n\n    students[count].average = calcAvg(scores, count);\n\n    count++;\n  }\n\n    input2.close();\n\n  for (int a = 0; a &lt; 9; a++)\n  cout &lt;&lt; students[a].fname &lt;&lt; \" \" &lt;&lt; students[a].lname &lt;&lt; \" \" &lt;&lt; students[a].low &lt;&lt; \" \" &lt;&lt; students[a].high &lt;&lt; \" \" &lt;&lt; students[a].average &lt;&lt; endl;\n\n  return 0;\n}\n\n  double calcAvg(double grades[][6], int student) \n  {\n    double average;\n    double sum = 0;\n\n    for (int a = 0; a &lt; 6; a++)\n      sum += grades[student][a];\n\n    average = sum \/ 6;\n\n    return average;\n  }\n\n  double calcHigh(double grades[][6], int student) \n  {\n    double high = 0;\n\n    for (int a = 0; a &lt; 6; a++) \n    {\n      if (grades[student][a] &gt;= high)\n      high = grades[student][a];\n    }\n    return high;\n  }\n\n  double calcLow(double grades[][6], int student) \n  {\n    double low = 100;\n\n    for (int a = 0; a &lt; 6; a++) \n    {\n      if (grades[student][a] &lt;= low)\n      low = grades[student][a];\n    }\n    return low;\n  }\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">1<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Array Struct Not Printing Correctly <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] In every function you are starting from array[-1], and in C\/C++ you won&#8217;t get an exception it will just take what is in memory before the array. Change [student-1] to [student] and initialise sum to 0. Advice for future: don&#8217;t use &#8216;magic numbers&#8217; in loops, declare them as a variable and then you can &#8230; <a title=\"[Solved] Array Struct Not Printing Correctly\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-array-struct-not-printing-correctly\/\" aria-label=\"More on [Solved] Array Struct Not Printing Correctly\">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-9289","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] Array Struct Not Printing Correctly - 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-array-struct-not-printing-correctly\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Array Struct Not Printing Correctly - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] In every function you are starting from array[-1], and in C\/C++ you won&#8217;t get an exception it will just take what is in memory before the array. 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