# ace::dependency Namespace Reference

Special namespace used to keep variables with indices of few special dependency values. More...

## Variables
dependency_index_t | head = 0
| Index of Head dependency.
dependency_index_t | undef = 0
| Index of Undef dependency.

## Detailed Description

Special namespace used to keep variables with indices of few special dependency values.

These values must be named explicitly because the program access them directly.

## Variable Documentation

dependency_index_t ace::dependency::head = 0

Index of Head dependency.

dependency_index_t ace::dependency::undef = 0

Index of Undef dependency.