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Avoid undefined behavior in *BIT macros 

hash_page.c:792:2, left shift of 1 by 31 places cannot be represented in type 'int'
hash_page.c:855:2, left shift of 1 by 31 places cannot be represented in type 'int'
hash_page.c:779:3, left shift of 1 by 31 places cannot be represented in type 'int'
This commit is contained in:
kamil 2020-02-21 22:04:06 +00:00
parent e3ba625111
commit ca9a018f12
1 changed files with 4 additions and 4 deletions
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8
lib/libc/db/hash/hash.h
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@ -1,4 +1,4 @@
/* $NetBSD: hash.h,v 1.16 2015/11/18 18:22:42 christos Exp $ */
/* $NetBSD: hash.h,v 1.17 2020/02/21 22:04:06 kamil Exp $ */
/*-
* Copyright (c) 1990, 1993, 1994
@ -156,9 +156,9 @@ typedef struct htab { /* Memory resident data structure */
#define BITS_PER_MAP 32
/* Given the address of the beginning of a big map, clear/set the nth bit */
#define CLRBIT(A, N) ((A)[(N)/BITS_PER_MAP] &= ~(1<<((N)%BITS_PER_MAP)))
#define SETBIT(A, N) ((A)[(N)/BITS_PER_MAP] |= (1<<((N)%BITS_PER_MAP)))
#define ISSET(A, N) ((A)[(N)/BITS_PER_MAP] & (1<<((N)%BITS_PER_MAP)))
#define CLRBIT(A, N) ((A)[(N)/BITS_PER_MAP] &= ~(1U<<((N)%BITS_PER_MAP)))
#define SETBIT(A, N) ((A)[(N)/BITS_PER_MAP] |= (1U<<((N)%BITS_PER_MAP)))
#define ISSET(A, N) ((A)[(N)/BITS_PER_MAP] & (1U<<((N)%BITS_PER_MAP)))
/* Overflow management */
/*