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This software may only be used by you under license from AT&T Corp.
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("AT&T"). A copy of AT&T's Source Code Agreement is available at
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AT&T's Internet website having the URL:
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<http://www.research.att.com/sw/tools/graphviz/license/source.html>
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If you received this software without first entering into a license
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with AT&T, you have an infringing copy of this software and cannot use
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it without violating AT&T's intellectual property rights.
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** Written by Kiem-Phong Vo (05/22/96)
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uint dtstrhash(reg uint h, Void_t* args, reg int n)
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uint dtstrhash(h,args,n)
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reg unsigned char* s = (unsigned char*)args;
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{ for(; (n = *s) != 0; ++s)
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{ reg unsigned char* ends;
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for(ends = s+n; s < ends; ++s)