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Re: RFC: mblen() return code when n is zero

From: Paul Eggert <eggert at cs dot ucla dot edu>
To: Rajalakshmi Srinivasaraghavan <raji at linux dot vnet dot ibm dot com>, libc-alpha at sourceware dot org
Date: Mon, 10 Nov 2014 22:46:16 -0800
Subject: Re: RFC: mblen() return code when n is zero
Authentication-results: sourceware.org; auth=none
References: <5461A2B7 dot 5070402 at linux dot vnet dot ibm dot com>

Rajalakshmi Srinivasaraghavan wrote:

The return code 0 and -1 can both be justified when n=0.

As a user of these functions, I'd far rather that mblen and mbtowc returned -1when given empty inputs. Having them return 0 implies that they've gone pastthe boundaries of their input buffers, which really ought to be a no-no.

Follow-Ups:
- Re: RFC: mblen() return code when n is zero
  - From: Rajalakshmi Srinivasaraghavan

References:
- RFC: mblen() return code when n is zero
  - From: Rajalakshmi Srinivasaraghavan

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