46 lines
1.5 KiB
C
46 lines
1.5 KiB
C
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/***
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*bsearch_s.c - do a binary search
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines bsearch_s() - do a binary search an an array
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*
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*******************************************************************************/
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/***
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*char *bsearch_s() - do a binary search on an array
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*
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*Purpose:
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* Does a binary search of a sorted array for a key.
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*
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*Entry:
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* const char *key - key to search for
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* const char *base - base of sorted array to search
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* unsigned int num - number of elements in array
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* unsigned int width - number of bytes per element
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* int (*compare)() - pointer to function that compares two array
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* elements, returning neg when #1 < #2, pos when #1 > #2, and
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* 0 when they are equal. Function is passed pointers to two
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* array elements, together with a pointer to a context.
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* void *context - pointer to the context in which the function is
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* called. This context is passed to the comparison function.
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*
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*Exit:
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* if key is found:
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* returns pointer to occurrence of key in array
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* if key is not found:
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* returns NULL
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*
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*Exceptions:
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* Input parameters are validated. Refer to the validation section of the function.
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*
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*******************************************************************************/
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#ifdef __USE_CONTEXT
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#error __USE_CONTEXT should be undefined
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#endif /* __USE_CONTEXT */
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#define __USE_CONTEXT
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#include "bsearch.c"
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