William Dillon hpux735

## proposal.md

      
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              March 4, 2016 02:46
            
              
                Draft Swift Evolution proposal
              
          
    Improve the portability of Swift with differently signed char.


Proposal: SE-004x
Author: William Dillon
Status: Draft
Review manager: TBD

Introduction

In C, the signness of char is undefined. A convention is set by either the platform, such as Windows, or by the architecture ABI specification, as is typical on System-V derived systems. A subset of known platforms germane to this discussion and their char signness is provided below.