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authorJoseph Myers <joseph@codesourcery.com>2015-09-15 20:36:50 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-09-15 20:36:50 +0000
commit223d1cacc5dafe8af53e84608c2d130721c4edcd (patch)
tree87c52d1da19bfde3a8822493e261442afd83360d
parent0b87419b690d1711697ed95808527400910ff997 (diff)
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Mark fegetround pure (bug 16296).
Bug 16296 notes that fegetround is a pure function and should be marked as such in fenv.h. This patch implements that. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by this patch). [BZ #16296] * math/fenv.h (fegetround): Use __attribute_pure__. * include/fenv.h (__fegetround): Likewise.
-rw-r--r--ChangeLog4
-rw-r--r--NEWS12
-rw-r--r--include/fenv.h2
-rw-r--r--math/fenv.h2
4 files changed, 12 insertions, 8 deletions
diff --git a/ChangeLog b/ChangeLog
index 56782dd4a7..fd281993c8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
2015-09-15 Joseph Myers <joseph@codesourcery.com>
+ [BZ #16296]
+ * math/fenv.h (fegetround): Use __attribute_pure__.
+ * include/fenv.h (__fegetround): Likewise.
+
[BZ #18595]
* math/s_ctan.c (__ctan): Force underflow exception for results
whose real or imaginary part has small absolute value.
diff --git a/NEWS b/NEWS
index 797d717fb4..b35d5424d3 100644
--- a/NEWS
+++ b/NEWS
@@ -9,12 +9,12 @@ Version 2.23
* The following bugs are resolved with this release:
- 2542, 2543, 2558, 2898, 14341, 14912, 15786, 15918, 16141, 16517, 16519,
- 16520, 16521, 16734, 16973, 16985, 17787, 17905, 18084, 18086, 18240,
- 18265, 18370, 18421, 18480, 18525, 18595, 18610, 18618, 18647, 18661,
- 18674, 18675, 18681, 18757, 18778, 18781, 18787, 18789, 18790, 18795,
- 18796, 18820, 18823, 18824, 18863, 18870, 18873, 18875, 18887, 18921,
- 18952, 18961, 18966.
+ 2542, 2543, 2558, 2898, 14341, 14912, 15786, 15918, 16141, 16296, 16517,
+ 16519, 16520, 16521, 16734, 16973, 16985, 17787, 17905, 18084, 18086,
+ 18240, 18265, 18370, 18421, 18480, 18525, 18595, 18610, 18618, 18647,
+ 18661, 18674, 18675, 18681, 18757, 18778, 18781, 18787, 18789, 18790,
+ 18795, 18796, 18820, 18823, 18824, 18863, 18870, 18873, 18875, 18887,
+ 18921, 18952, 18961, 18966.
* The obsolete header <regexp.h> has been removed. Programs that require
this header must be updated to use <regex.h> instead.
diff --git a/include/fenv.h b/include/fenv.h
index 7070199ece..de4d46f8b7 100644
--- a/include/fenv.h
+++ b/include/fenv.h
@@ -13,7 +13,7 @@ extern int __fesetexceptflag (const fexcept_t *__flagp, int __excepts);
extern int __fegetenv (fenv_t *__envp);
extern int __fesetenv (const fenv_t *__envp);
extern int __feupdateenv (const fenv_t *__envp);
-extern __typeof (fegetround) __fegetround;
+extern __typeof (fegetround) __fegetround __attribute_pure__;
extern __typeof (feholdexcept) __feholdexcept;
extern __typeof (fesetround) __fesetround;
diff --git a/math/fenv.h b/math/fenv.h
index b80d3c0532..9d4492f36c 100644
--- a/math/fenv.h
+++ b/math/fenv.h
@@ -82,7 +82,7 @@ extern int fetestexcept (int __excepts) __THROW;
/* Rounding control. */
/* Get current rounding direction. */
-extern int fegetround (void) __THROW;
+extern int fegetround (void) __THROW __attribute_pure__;
/* Establish the rounding direction represented by ROUND. */
extern int fesetround (int __rounding_direction) __THROW;