mirror of
https://github.com/cc65/cc65.git
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116 lines
1.8 KiB
C
116 lines
1.8 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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/* From _heap.h */
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extern unsigned _horg; /* Bottom of heap */
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extern unsigned _hptr; /* Current top */
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extern unsigned _hend; /* Upper limit */
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extern unsigned _hfirst; /* First free block in list */
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extern unsigned _hlast; /* Last free block in list */
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static unsigned char* V[256];
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static void ShowInfo (void)
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/* Show heap info */
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{
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/* Count free blocks */
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unsigned Count = 0;
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unsigned** P = (unsigned**) _hfirst;
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while (P) {
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++Count;
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P = P[1];
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}
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printf ("%04X %04X %04X %04X %04X %u\n",
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_horg, _hptr, _hend, _hfirst, _hlast, Count);
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if (Count) {
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P = (unsigned**) _hfirst;
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while (P) {
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printf ("%04X %04X %04X %04X(%u)\n",
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(unsigned) P, P[2], P[1], P[0], P[0]);
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P = P[1];
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}
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getchar ();
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}
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}
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static const char* RandStr (void)
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/* Create a random string */
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{
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static char S [300];
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unsigned Len = (rand () & 0xFF) + (sizeof (S) - 0xFF - 1);
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unsigned I;
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char C;
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for (I = 0; I < Len; ++I) {
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do {
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C = rand() & 0xFF;
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} while (C == 0);
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S[I] = C;
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}
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S[Len] = '\0';
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return S;
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}
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static void FillArray (void)
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/* Fill the string array */
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{
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unsigned char I = 0;
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do {
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V[I] = strdup (RandStr ());
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++I;
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} while (I != 0);
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}
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static void FreeArray (void)
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/* Free all strings in the array */
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{
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unsigned char I = 0;
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do {
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free (V[I]);
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++I;
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} while (I != 0);
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}
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int main (void)
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{
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unsigned long T;
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/* Show info at start */
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ShowInfo ();
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/* Remember the time */
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T = clock ();
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/* Do the tests */
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FillArray ();
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ShowInfo ();
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FreeArray ();
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ShowInfo ();
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/* Calculate the time and print it */
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T = clock () - T;
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printf ("Time needed: %lu ticks\n", T);
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/* Done */
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return EXIT_SUCCESS;
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}
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