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1 /* $Id: compat-queue.h 1825 2007-04-22 03:32:46Z peter $ | 1 /* |
2 * <sys/queue.h> implementation for systems that don't have it. | 2 * <sys/queue.h> implementation for systems that don't have it. |
3 * | 3 * |
4 * Copyright (c) 1991, 1993 | 4 * Copyright (c) 1991, 1993 |
5 * The Regents of the University of California. All rights reserved. | 5 * The Regents of the University of California. All rights reserved. |
6 * | 6 * |
7 * Redistribution and use in source and binary forms, with or without | 7 * Redistribution and use in source and binary forms, with or without |
8 * modification, are permitted provided that the following conditions | 8 * modification, are permitted provided that the following conditions |
9 * are met: | 9 * are met: |
10 * 1. Redistributions of source code must retain the above copyright | 10 * 1. Redistributions of source code must retain the above copyright |
11 * notice, this list of conditions and the following disclaimer. | 11 * notice, this list of conditions and the following disclaimer. |
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447 if ((TAILQ_NEXT((elm), field)) != NULL) \ | 447 if ((TAILQ_NEXT((elm), field)) != NULL) \ |
448 TAILQ_NEXT((elm), field)->field.tqe_prev = \ | 448 TAILQ_NEXT((elm), field)->field.tqe_prev = \ |
449 (elm)->field.tqe_prev; \ | 449 (elm)->field.tqe_prev; \ |
450 else { \ | 450 else { \ |
451 (head)->tqh_last = (elm)->field.tqe_prev; \ | 451 (head)->tqh_last = (elm)->field.tqe_prev; \ |
452 } \ | 452 } \ |
453 *(elm)->field.tqe_prev = TAILQ_NEXT((elm), field); \ | 453 *(elm)->field.tqe_prev = TAILQ_NEXT((elm), field); \ |
454 } while (0) | 454 } while (0) |
455 | 455 |
456 #endif /* !SYS_QUEUE_H */ | 456 #endif /* !SYS_QUEUE_H */ |
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