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pointer example 3
#include <stdio.h> #include <stdlib.h> void main() { float *myarr; int i; /* Allocate an array of 5 floating point values */ myarr = (float *) calloc(5, sizeof(float)); /* myarr is an array of 5 floating point values */ for (i = 0; i < 5; i++) myarr[i] = 2.0 * i; for (i = 0; i < 5; i++) printf("myarr[%d] = %lf\n", i, myarr[i]); printf("------------------------------\n"); /* Increase the size of the array by 5 more floating point values */ myarr = (float *) realloc(myarr,10 * sizeof(float)); for (i = 5; i < 10; i++) myarr[i] = 10.0 * i; for (i = 0; i < 10; i++) printf("myarr[%d] = %lf\n", i, myarr[i]); }
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