52 lines
931 B
C
52 lines
931 B
C
#include <stdlib.h>
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#include <stdio.h>
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int **allocate_matrix(int rows, int cols)
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{
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int **matrix = malloc(rows * sizeof(int *));
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if (!matrix)
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return NULL;
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for (int i = 0; i < rows; i++)
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{
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matrix[i] = malloc(cols * sizeof(int));
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if (!matrix[i])
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{
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for (int j = 0; j < i; j++)
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free(matrix[j]);
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free(matrix);
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return NULL;
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}
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}
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return matrix;
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}
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void free_matrix(int **matrix, int rows)
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{
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if (!matrix)
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return;
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free(matrix);
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return;
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}
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int main(void)
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{
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int rows = 5;
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int cols = 5;
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int **matrix = allocate_matrix(rows, cols);
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if (!matrix)
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{
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return EXIT_FAILURE;
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}
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for (int i = 0; i < rows; i++)
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{
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for (int j = 0; j < cols; j++)
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{
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matrix[i][j] = i * cols + j;
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}
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}
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free_matrix(matrix, rows);
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return EXIT_SUCCESS;
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}
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