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50 lines
993 B
50 lines
993 B
#include "denpre.h"
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#include "util.h"
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template <class T>
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class less
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{
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public:
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BOOL operator()(const T &a, const T &b)
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{
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return a < b;
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}
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};
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int vec[10] = { 33, 251, 253, 254, 263, 272, 274, 302, 305, 307 };
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void PrintPair(int value, int *pLB, int *pUB)
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{
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if (pLB == NULL && pUB == NULL)
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printf("Array is Empty or Bug in bsearch!\n");
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else if (pLB == NULL)
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printf("%d < %d\n", value, *pUB);
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else if (pUB == NULL)
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printf("%d > %d\n", value, *pLB);
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else
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printf("%d <= %d <= %d\n", *pLB, value, *pUB);
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}
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void main()
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{
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int *pLB, *pUB;
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bsearch(&vec[0], &vec[10], 253, less<int>(), &pLB, &pUB);
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PrintPair(253, pLB, pUB);
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bsearch(&vec[0], &vec[10], 267, less<int>(), &pLB, &pUB);
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PrintPair(267, pLB, pUB);
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bsearch(&vec[0], &vec[10], 399, less<int>(), &pLB, &pUB);
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PrintPair(399, pLB, pUB);
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bsearch(&vec[0], &vec[10], 2, less<int>(), &pLB, &pUB);
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PrintPair(2, pLB, pUB);
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bsearch(&vec[0], &vec[0], 39, less<int>(), &pLB, &pUB);
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PrintPair(39, pLB, pUB);
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}
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