{"id":5011,"date":"2022-08-25T21:22:38","date_gmt":"2022-08-25T15:52:38","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-what-are-the-following-notations-pointing-to\/"},"modified":"2022-08-25T21:22:38","modified_gmt":"2022-08-25T15:52:38","slug":"solved-what-are-the-following-notations-pointing-to","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-what-are-the-following-notations-pointing-to\/","title":{"rendered":"[Solved] What are the following notations pointing to?"},"content":{"rendered":"

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int arr[4][3][2]<\/code> means arr<\/code> is 3D<\/code> array, consists four 2D<\/code> array, each 2D<\/code> array having three 1D<\/code> array and each 1D array<\/code> having two-two<\/code> elements.<\/p>\n

Let’s Have a pictorial representation of arr<\/code> : Assume arr<\/code> base address is 0x100<\/code>.<\/p>\n

arr[0][0][0]                               arr[1][0][0]                          arr[2][0][0]                            arr[3][0][0]\n 0x100      0x104         0x108   0x112     0x116    0x120      0x124      0x128  0x132    0x136       0x140      0x144   0x148       0x152    0x156          0x160     <--1D array elements\n   |         |              |       |        |         |          |         |      |        |            |         |       |           |         |              |\n   ----------                --------         ----------           ----------      ----------            -----------       ------------           ---------------\n        |                       |                 |                     |              |                      |                 |                       |\n        arr[0][0]               arr[0][1]       arr[1][0]            arr[1][1]       arr[2][0]              arr[2][1]         arr[3][0]               arr[3][1]\n        0x100                   0x108           0x116                 0x124          0x132                   0x140             0x148                   0x156            <---1D array\n        |                       |               |                       |              |                       |                |                       |\n        ------------------------                -------------------------              -------------------------                ------------------------\n                |                                      |                                      |                                         |\n                arr[0]                               arr[1]                                 arr[2]                                    arr[3]                            <---2D array\n                0x100                                0x116                                  0x132                                     0x148\n                |                                      |                                      |                                         |\n                -------------------------------------------------------------------------------------------------------------------------\n                                                                        |\n                                                                       arr                                                                                              <---3D array\n                                                                      0x100\n<\/code><\/pre>\n
If you analyse above figure, you will come to know that arr<\/code>,arr[0]<\/code>,arr[0][0]<\/code> and &arr[0][0][0]<\/code> all are same<\/code>, all are holding arr<\/code> base address that is 0x100<\/code>.<\/p>\n
Note that arr[0][0][0]<\/code> is value<\/code> but &arr[0][0][0]<\/code> is address<\/code> of first elements, so both are different<\/code>.<\/p>\n
arr<\/code> and &arr<\/code> also same<\/code> because arr name itself address so by putting & doesn’t make any difference.<\/p>\n
arr[0][0]<\/code>  and &arr[0][0]<\/code> also same because arr[0][0]<\/code> is one dimensional array i.e single pointer<\/code> pointing to two elements called arr[0][0][0]<\/code> and arr[0][0][1]<\/code>.
\nas      <\/p>\n
arr[0][0]               ==      & arr[0][0]\n*( *(arr+0) + 0)        ==      & *( *(arr+0) + 0)\n*( *(0x100 + 0x16) + 0) ==      & *( *(0x100 + 0x16) + 0)\n*( *(0x100))            ==      & *( *(0x100))\n*( 0x100)               ==      & *( 0x100)\n0x100                   ==      & 0x100\n0x100                   ==      0x100\n<\/code><\/pre>\n<\/p><\/div>\n
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solved What are the following notations pointing to? <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] int arr[4][3][2] means arr is 3D array, consists four 2D array, each 2D array having three 1D array and each 1D array having two-two elements. Let’s Have a pictorial representation of arr : Assume arr base address is 0x100. arr[0][0][0] arr[1][0][0] arr[2][0][0] arr[3][0][0] 0x100 0x104 0x108 0x112 0x116 0x120 0x124 0x128 0x132 0x136 0x140 … 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":[361,324,505],"class_list":["post-5011","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-c","tag-multidimensional-array"],"yoast_head":"\n[Solved] What are the following notations pointing to? - 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-what-are-the-following-notations-pointing-to\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] What are the following notations pointing to? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] int arr[4][3][2] means arr is 3D array, consists four 2D array, each 2D array having three 1D array and each 1D array having two-two elements. 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Let’s Have a pictorial representation of arr : Assume arr base address is 0x100. arr[0][0][0] arr[1][0][0] arr[2][0][0] arr[3][0][0] 0x100 0x104 0x108 0x112 0x116 0x120 0x124 0x128 0x132 0x136 0x140 ... 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