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typename.c
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/*====================================================================*
*
* char const * typename (struct _type_ const list [], size_t size, type_t type, char const * name);
*
* symbol.h
*
* return the name associated with a given type by searching a name
* table arranged in ascending order by type; return the table name
* if the type is found or argument name if not;
*
* typedefs type_t and struct _type_ are defined in types.h;
*
* Motley Tools by Charles Maier <cmaier@cmassoc.net>;
* Copyright (c) 2001-2006 by Charles Maier Associates;
* Licensed under the Internet Software Consortium License;
*
*--------------------------------------------------------------------*/
#ifndef TYPENAME_SOURCE
#define TYPENAME_SOURCE
#include <unistd.h>
#include "../tools/symbol.h"
char const * typename (struct _type_ const list [], size_t size, type_t type, char const * name)
{
size_t lower = 0;
size_t upper = size;
while (lower < upper)
{
size_t index = (lower + upper) >> 1;
signed order = type - list [index].type;
if (order < 0)
{
upper = index - 0;
continue;
}
if (order > 0)
{
lower = index + 1;
continue;
}
return (list [index].name);
}
return (name);
}
#endif
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