From 0562b040fa17f1722ba2b3096067b45d0582ca53 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Mon, 11 Mar 2019 16:40:29 -0700 Subject: [PATCH] strtod: fix clash with strtold Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817). * lib/strtod.c (compute_minus_zero, minus_zero): Simplify by remving the macro / external variable, and having just a function. User changed. This avoids the need for an external variable that might clash. Upstream-Status: Backport [rhel5] Signed-off-by: Oleksandr Kravchuk --- ChangeLog | 9 +++++++++ lib/strtod.c | 11 +++++------ 2 files changed, 14 insertions(+), 6 deletions(-) diff --git a/lib/strtod.c b/lib/strtod.c index b9eaa51b4..69b1564e1 100644 --- a/lib/strtod.c +++ b/lib/strtod.c @@ -294,16 +294,15 @@ parse_number (const char *nptr, ICC 10.0 has a bug when optimizing the expression -zero. The expression -MIN * MIN does not work when cross-compiling to PowerPC on Mac OS X 10.5. */ -#if defined __hpux || defined __sgi || defined __ICC static DOUBLE -compute_minus_zero (void) +minus_zero (void) { +#if defined __hpux || defined __sgi || defined __ICC return -MIN * MIN; -} -# define minus_zero compute_minus_zero () #else -DOUBLE minus_zero = -0.0; + return -0.0; #endif +} /* Convert NPTR to a DOUBLE. If ENDPTR is not NULL, a pointer to the character after the last one used in the number is put in *ENDPTR. */ @@ -479,6 +478,6 @@ STRTOD (const char *nptr, char **endptr) /* Special case -0.0, since at least ICC miscompiles negation. We can't use copysign(), as that drags in -lm on some platforms. */ if (!num && negative) - return minus_zero; + return minus_zero (); return negative ? -num : num; } -- 2.20.1