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<title>N2xxx: Missing 'const' in decimal getpayload
functions</title>
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<p><br>
<!-- Who are the authors... -->
<b>Submitter:</b>Fred J. Tydeman<br>
<!-- What is the date of submission. yyyy-mm-dd -->
<b>Submission Date:</b> 2020-mm-dd<br>
<b>Document:</b> WG14 N2xxx<br>
<b>Title:</b> N2xxx: Missing 'const' in decimal getpayload
functions<br>
<b>Reference Documents:</b> N2478, N2341</p>
<p>Summary: 'const' is missing from the decimal getpayload
functions.</p>
<p>The binary getpayload functions (WG14 N2478 Annex B.11 and
F.10.13.1):</p>
<blockquote>
<pre>
<code>
double getpayload(const double *x);
float getpayloadf(const float *x);
long double getpayloadl(const long double *x);
</code>
</pre>
</blockquote>have 'const' in the parameter.
<p>While the corresponding decimal functions:</p>
<blockquote>
<pre>
<code>
_Decimal32 getpayloadd32(_Decimal32 *x);
_Decimal64 getpayloadd64(_Decimal64 *x);
_Decimal128 getpayloadd128(_Decimal128 *x);
</code>
</pre>
</blockquote>are missing that 'const'. That 'const' is there in
N2341 (TS 18661-2) from CFP that was voted to be added to C2X.
This looks like a minor typo in merging N2341 into C2X.
<p>'const' should be added to the three decimal getpayloaddN
functions as:</p>
<blockquote>
<pre>
<code>
_Decimal32 getpayloadd32(<ins>const</ins> _Decimal32 *x);
_Decimal64 getpayloadd64(<ins>const</ins> _Decimal64 *x);
_Decimal128 getpayloadd128(<ins>const</ins> _Decimal128 *x);
</code>
</pre>
</blockquote>
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