{"id":11344,"date":"2022-09-27T01:47:27","date_gmt":"2022-09-26T20:17:27","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-first-chance-exception-without-compiling-errors\/"},"modified":"2022-09-27T01:47:27","modified_gmt":"2022-09-26T20:17:27","slug":"solved-first-chance-exception-without-compiling-errors","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-first-chance-exception-without-compiling-errors\/","title":{"rendered":"[Solved] First chance exception without compiling errors"},"content":{"rendered":"

[ad_1]
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There are a lot of issues in your code that will result in problems:<\/p>\n

    \n
  1. Your constructor Macierz(int _x, int _y)<\/code> doesn’t work like you think it does. Only wiersze[0]<\/code> will be valid after it finishes and any non-zero index will access unknown memory. The issue is really with your design of your 2D matrix class. I would get rid of the manually managed memory and just use a 2D vector vector<vector<int>><\/code> or even just a flat 1D vector and manage the index manually. <\/li>\n
  2. Your copy constructor Macierz(Macierz &m)<\/code> doesn’t allocate memory for the new matrix and thus you are writing to unknown memory.<\/li>\n
  3. All your binary operators (+, -, *) allocate a new object and return it which will result in leaked memory. The canonical way is usually to modify the object and just return *this;<\/code> for such operators. See this question for more details on operator overloading.<\/li>\n
  4. Your copy operator Macierz::operator=(Macierz &m)<\/code> doesn’t check if the matrix is the same size or not. If it isn’t the same size you’d need to destroy and reallocate the matrix.<\/li>\n
  5. Your Macierz::operator()(int x, int y)<\/code> doesn’t check the input indexes which may be on purpose but you may consider throwing an exception like with your other methods.<\/li>\n
  6. You have no destructor which will result in leaked memory, although if you use a vector<><\/code> you wouldn’t need one.<\/li>\n<\/ol>\n

    If you really need\/want to implement a 2D matrix class from scratch you can search online for a large variety of existing code, like this one<\/a>, as examples of what to do.<\/p>\n<\/p><\/div>\n

    <\/div>\n<\/div>\n

    <\/span> <\/p><\/div>\n<\/div>\n

    [ad_2]<\/p>\n

    solved First chance exception without compiling errors <\/p>\n","protected":false},"excerpt":{"rendered":"

    [ad_1] There are a lot of issues in your code that will result in problems: Your constructor Macierz(int _x, int _y) doesn’t work like you think it does. Only wiersze[0] will be valid after it finishes and any non-zero index will access unknown memory. The issue is really with your design of your 2D matrix … 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":[324,3106],"class_list":["post-11344","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-first-chance-exception"],"yoast_head":"\n[Solved] First chance exception without compiling errors - 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-first-chance-exception-without-compiling-errors\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] First chance exception without compiling errors - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] There are a lot of issues in your code that will result in problems: Your constructor Macierz(int _x, int _y) doesn’t work like you think it does. 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