* lib/ftoastr.h (_GL_FLT_PREC_BOUND, _GL_DBL_PREC_BOUND)
(_GL_LDBL_PREC_BOUND): Make these macros, not enums, to work
around a compiler bug in IBM xlc 12.1.0.0: it complains
'"ftoastr.c", line 80.37: 1506-045 (S) Undeclared identifier
_GL_FLT_PREC_BOUND.'
---
ChangeLog | 9 +++++++++
lib/ftoastr.h | 17 +++++++++--------
2 files changed, 18 insertions(+), 8 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 6b94234..5bb9d97 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2014-05-30 Paul Eggert <egg...@cs.ucla.edu>
+
+ ftoastr: work around compiler bug in IBM xlc 12.1
+ * lib/ftoastr.h (_GL_FLT_PREC_BOUND, _GL_DBL_PREC_BOUND)
+ (_GL_LDBL_PREC_BOUND): Make these macros, not enums, to work
+ around a compiler bug in IBM xlc 12.1.0.0: it complains
+ '"ftoastr.c", line 80.37: 1506-045 (S) Undeclared identifier
+ _GL_FLT_PREC_BOUND.'
+
2014-05-30 Kieran Colford <colfo...@gmail.com>
valgrind-tests: fixed misleading help message
diff --git a/lib/ftoastr.h b/lib/ftoastr.h
index 6236292..26cad73 100644
--- a/lib/ftoastr.h
+++ b/lib/ftoastr.h
@@ -72,12 +72,13 @@ enum
/* _GL_FLT_PREC_BOUND is an upper bound on the precision needed to
represent a float value without losing information. Likewise for
- _GL_DBL_PREC_BOUND and double, and _GL_LDBL_PREC_BOUND and long double. */
+ _GL_DBL_PREC_BOUND and double, and _GL_LDBL_PREC_BOUND and long double.
+ These are macros, not enums, to work around a bug in IBM xlc 12.1. */
#if FLT_RADIX == 10 /* decimal floating point */
- enum { _GL_FLT_PREC_BOUND = FLT_MANT_DIG };
- enum { _GL_DBL_PREC_BOUND = DBL_MANT_DIG };
- enum { _GL_LDBL_PREC_BOUND = LDBL_MANT_DIG };
+# define _GL_FLT_PREC_BOUND FLT_MANT_DIG
+# define _GL_DBL_PREC_BOUND DBL_MANT_DIG
+# define _GL_LDBL_PREC_BOUND LDBL_MANT_DIG
#else
/* An upper bound on the number of bits needed to represent a single
@@ -95,13 +96,13 @@ enum
DIG digits. For why the "+ 1" is needed, see "Binary to Decimal
Conversion" in David Goldberg's paper "What Every Computer
Scientist Should Know About Floating-Point Arithmetic"
- <http://docs.sun.com/source/806-3568/ncg_goldberg.html>. */
+ <http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html>. */
# define _GL_FLOAT_PREC_BOUND(dig) \
(INT_BITS_STRLEN_BOUND ((dig) * _GL_FLOAT_DIG_BITS_BOUND) + 1)
- enum { _GL_FLT_PREC_BOUND = _GL_FLOAT_PREC_BOUND ( FLT_MANT_DIG) };
- enum { _GL_DBL_PREC_BOUND = _GL_FLOAT_PREC_BOUND ( DBL_MANT_DIG) };
- enum { _GL_LDBL_PREC_BOUND = _GL_FLOAT_PREC_BOUND (LDBL_MANT_DIG) };
+# define _GL_FLT_PREC_BOUND _GL_FLOAT_PREC_BOUND ( FLT_MANT_DIG)
+# define _GL_DBL_PREC_BOUND _GL_FLOAT_PREC_BOUND ( DBL_MANT_DIG)
+# define _GL_LDBL_PREC_BOUND _GL_FLOAT_PREC_BOUND (LDBL_MANT_DIG)
#endif
--
1.9.3
