55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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// Simple function to populate an integer array
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void PopulateTheArray ( int Size, int ArrayData[])
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{
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int i; // Variable to use in our loop
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for ( i = 0 ; i < Size ; i++)
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{
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ArrayData[i] = 2*i + 1; // Treat it like a normal array
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}
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}
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// Simple function do display contents an integer array
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void DisplayTheArray ( int Size, int ArrayData[])
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{
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int i; // Variable to use in our loop
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for ( i = 0 ; i < Size ; i++)
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{
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printf ("Item %d of the array contains %d\n", i, ArrayData[i]);
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}
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}
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// Main () - execution starts here
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int main (void)
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{
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int iSizeForArray;
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int *pData; // A pointer to hold the base address of out array
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// Ask for the size of the array and store result
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printf("\nPlease enter the size of the array to dynamically allocate");
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scanf ("%d", &iSizeForArray);
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// Use calloc with checking
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pData = calloc ( iSizeForArray, sizeof (int));
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// Check we got the memory
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if ( pData == NULL)
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{
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printf ("\nSorry, I could not allocate the memory, bye!");
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return -1;
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}
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// Pass the size, iSizeForArray) and the pointer created
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// which points to the start of the sucesfully allocated memory
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PopulateTheArray(iSizeForArray, pData);
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DisplayTheArray(iSizeForArray, pData);
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free (pData); // Free up the memory before exiting
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return (0); // Exit indicating sucess
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}
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