📄 malloctest.c
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7299, 110508, 27776, 246134, 0, 330853, 0, 271767, 61886, 24123, 309681, 58325, 608865, 20666, 87349, 229228, 246, 457768, 5374, 69643, 148, 618375, 45236, 352565, 133904, 152, 10688, 18, 0, 276036, 493281, 11156, 12566, 5762, 113, 24179, 98, 327, 893, 209180, 140805, 0, 2341, 66309, 30305, 630559, 3682, 152767, 265822, 142868, 1535, 728603, 69081, 353151, 237995, 1075, 925071, 86, 6748, 0, 684186, 735, 13793, 4790, 73175, 69677, 367627, 238650, 303543, 1, 26059, 21392, 10, 288609, 0, 76345, 158496, 7000, 1865, 20385, 0, 54213, 9948, 102667, 6963, 71, 555744, 5626, 2512, 1124, 7171, 628, 29225, 321687, 61519, 4, 8352, 9156,};char *pointers[NCYCLES];int main(void){ int r, i, j, sp, sq; char *p, *q, *ep, *eq; int ok; int err = 0; for (r = 0; r < 4; r++) { for (i = 0; i < NCYCLES; i++) { pointers[i] = p = malloc(sp = sizes[i]); ep = p + sp; ok = 1; for (j = 0; j < i; j++) { q = pointers[j]; sq = sizes[j]; eq = q + sq; if ((p < q && ep > q) || (p >= q && p < eq)) { ok = 0; err = 1; break; } } printf("Allocated %6d bytes at %p, ok = %d\n", sp, p, ok); if (p) memset(p, 0xee, sp); /* Poison this memory */ } for (i = 0; i < NCYCLES; i++) { free(pointers[i]); printf("Freed %6d bytes at %p\n", sizes[i], pointers[i]); } } return err;}⌨️ 快捷键说明
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