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[PATCH][BZ #6803] Set errno for scalbln, scalbn

From: Stefan Liebler <stli at linux dot vnet dot ibm dot com>
To: libc-alpha at sourceware dot org
Date: Wed, 23 Apr 2014 16:29:22 +0200
Subject: [PATCH][BZ #6803] Set errno for scalbln, scalbn
Authentication-results: sourceware.org; auth=none

Hi,

this patch sets errno to ERANGE on overflow and underflow.

The corresponding tests in libm-test.inc are updated to check for errno,too.


Tested on S390/S390x.

ok to commit?

Bye

---
2014-04-23  Stefan Liebler  <stli@linux.vnet.ibm.com>

	[BZ #6803]
	* sysdeps/ieee754/flt-32/s_scalbnf.c (__scalbnf):
	Set errno on underflow / overflow.
	* sysdeps/ieee754/dbl-64/s_scalbn.c (__scalbn): Likewise.
	* sysdeps/ieee754/ldbl-128/s_scalbnl.c (__scalbnl): Likewise.
	* sysdeps/ieee754/flt-32/s_scalblnf.c (__scalblnf): Likewise.
	* sysdeps/ieee754/dbl-64/s_scalbln.c (__scalbln): Likewise.
	* sysdeps/ieee754/ldbl-128/s_scalblnl.c (__scalblnl): Likewise.
	* math/libm-test.inc
	(scalbn_test_data): Add errno expectations.
	(scalbln_test_data): Likewise.
---

Attachment: patchglibc_math_errno_scalbln_scalbn
Description: Text document

Follow-Ups:
- Re: [PATCH][BZ #6803] Set errno for scalbln, scalbn
  - From: Joseph S. Myers

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