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POHow to assign values to the whole row of a dynamic two dimensional array?
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copied!<p>I need to perform 9 different operations on a coordinate, depending on the position of the coordinate. I have a function that returns the coordinates of a position around the given coordinate (down, up, left, right or diagonals). The 9 different operations are the different possible 'types' of coordinate; if I'm dealing with coordinate (0, 0), the only valid operations are right, down-right and down.</p> <p>I have a structure where I store the directions that are valid for each type of coordinate. 4 for the corner coordinates, 1 for all the inner coordinates, and 4 for the non-corner columns of the edge-rows.</p> <p>The field in the structure where I store all the directions is a dynamic two-dimensional array called 'library'. Each row of library would correspond to a type of coordinate, containing all the valid directions for that type of coordinate. I haven't found a way to assign the values one row at a time though, and I can't assign them individually with a loop.</p> <p>What I have tried is:</p> <pre><code>searches->library[0][0] = {2, 3, 4, -1}; searches->library[1][0] = {4, 5, 6, -1}; searches->library[2][0] = {2, 3, 4, 5, 6, -1}; searches->library[3][0] = {0, 1, 2, 3, 4, 5, 6, 7, -1}; searches->library[4][0] = {0, 1, 2, -1}; searches->library[5][0] = {0, 6, 7, -1}; searches->library[6][0] = {0, 1, 2, 6, 7, -1}; searches->library[7][0] = {0, 1, 2, 3, 4, -1}; searches->library[8][0] = {0, 4, 5, 6, 7, -1}; </code></pre> <p>But this gives me <code>p2AdjacencyMatrix.c:179: error: parse error before '{' token</code> for each line.</p> <p>I have also tried:</p> <pre><code>searches->library[][9] = {{2, 3, 4, -1}, {4, 5, 6, -1}, {2, 3, 4, 5, 6, -1}, {0, 1, 2, 3, 4, 5, 6, 7, -1}, {0, 1, 2, -1}, {0, 6, 7, -1}, {0, 1, 2, 6, 7, -1}, {0, 1, 2, 3, 4, -1}, {0, 4, 5, 6, 7, -1}}; </code></pre> <p>And the result it <code>p2AdjacencyMatrix.c:189: error: parse error before ']' token</code></p> <p>Here is the structure definition:</p> <pre><code>typedef struct{ int active_length; // Size of active array of searches int* active; // Active array of searches int** library; // Library of array of searches } SearchLibrary; </code></pre> <p>And the memory allocation for the dynamic array:</p> <pre><code>SearchLibrary* searches; searches = (SearchLibrary *) malloc(sizeof(SearchLibrary*)); int search_cases = 9, search_directions = 9; searches->library = (int **) malloc(search_cases * sizeof(int *)); searches->active = (int *) malloc(search_directions * sizeof(int)); int i; for(i = 0; i < search_cases; i++){ searches->library[i] = (int *) malloc(search_directions * sizeof(int)); } </code></pre> <p><strong>How can I add these values to each row of the array?</strong> I tried changing my structure definition to a static array, but that didn't work either. Is this happening because I'm using a pointer to a structure?</p>

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