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17 lines
534 B
C
17 lines
534 B
C
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#include <stdio.h>
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/* fclose in one branch, then unconditional fread after.
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True path: fclose(f) → fread(CLOSED) = use-after-close.
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False path: fread(OPEN) = fine.
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Converged state at fread: OPEN|CLOSED (join).
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Expected: NO state-use-after-close (conservative: join masks it).
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Expected: state-resource-leak-possible (false path never closes). */
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void use_closed_branch(int cond) {
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FILE *f = fopen("data.txt", "r");
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if (cond) {
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fclose(f);
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}
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char buf[256];
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fread(buf, 1, sizeof(buf), f);
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}
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