Function HSH_remove

src/gpre/hsh.cpp:192–223

//

void HSH_remove( gpre_sym* symbol)
{
	const int h = hash(symbol->sym_string);

	for (gpre_sym** next = &hash_table[h]; *next; next = &(*next)->sym_collision)
	{
		if (symbol == *next)
		{
			gpre_sym* homonym = symbol->sym_homonym;
			if (homonym)
			{
				homonym->sym_collision = symbol->sym_collision;
				*next = homonym;
			}
			else {
				*next = symbol->sym_collision;
			}
			return;
		}

		for (gpre_sym** ptr = &(*next)->sym_homonym; *ptr; ptr = &(*ptr)->sym_homonym)
		{
			if (symbol == *ptr)
			{
				*ptr = symbol->sym_homonym;
				return;
			}
		}
	}

	CPR_error("HSH_remove failed");
}


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