mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 16:36:21 +00:00
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "../memcheck.h"
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#include "leak.h"
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char *b10;
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char *b21;
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char *b32_33[2];
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static void breakme() {};
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void f(void)
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{
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int i;
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b10 = malloc (10);
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fprintf(stderr, "expecting details 10 bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_LEAK_CHECK;
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fprintf(stderr, "expecting to have NO details\n"); fflush(stderr); breakme();
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VALGRIND_DO_ADDED_LEAK_CHECK;
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b10--; // lose b10
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b21 = malloc (21);
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fprintf(stderr, "expecting details +10 bytes lost, +21 bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_ADDED_LEAK_CHECK;
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for (i = 0; i < 2; i ++)
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b32_33[i] = malloc (32+i);
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fprintf(stderr, "expecting details +65 bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_ADDED_LEAK_CHECK;
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fprintf(stderr, "expecting to have NO details\n"); fflush(stderr); breakme();
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VALGRIND_DO_ADDED_LEAK_CHECK;
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b10++;
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fprintf(stderr, "expecting details +10 bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_ADDED_LEAK_CHECK;
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b10--;
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fprintf(stderr, "expecting details -10 bytes reachable, +10 bytes lost\n"); fflush(stderr); breakme();
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VALGRIND_DO_CHANGED_LEAK_CHECK;
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b10++;
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fprintf(stderr, "expecting details -10 bytes lost, +10 bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_CHANGED_LEAK_CHECK;
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b32_33[0]--;
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fprintf(stderr, "expecting details 32 (+32) bytes lost, 33 (-32) bytes reachable\n"); fflush(stderr); breakme();
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VALGRIND_DO_CHANGED_LEAK_CHECK;
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fprintf(stderr, "finished\n");
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}
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int main(void)
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{
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DECLARE_LEAK_COUNTERS;
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GET_INITIAL_LEAK_COUNTS;
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f(); // see leak-cases.c
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GET_FINAL_LEAK_COUNTS;
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PRINT_LEAK_COUNTS(stderr);
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return 0;
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}
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