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Add last-ditch defense against attempts to compile datetime code with

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-ffast-math.
This commit is contained in:
Tom Lane
2002-09-21 19:52:41 +00:00
parent eb3adab568
commit e303a2dbe8
2 changed files with 27 additions and 11 deletions
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26
src/backend/utils/adt/date.c
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@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.72 2002/09/04 20:31:27 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/date.c,v 1.73 2002/09/21 19:52:41 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -27,11 +27,19 @@
#include "utils/nabstime.h"
#include "utils/timestamp.h"
/*
* gcc's -ffast-math switch breaks routines that expect exact results from
* expressions like timeval / 3600, where timeval is double.
*/
#ifdef __FAST_MATH__
#error -ffast-math is known to break this code
#endif
int time2tm(TimeADT time, struct tm * tm, fsec_t *fsec);
int timetz2tm(TimeTzADT *time, struct tm * tm, fsec_t *fsec, int *tzp);
int tm2time(struct tm * tm, fsec_t fsec, TimeADT *result);
int tm2timetz(struct tm * tm, fsec_t fsec, int tz, TimeTzADT *result);
static int time2tm(TimeADT time, struct tm * tm, fsec_t *fsec);
static int timetz2tm(TimeTzADT *time, struct tm * tm, fsec_t *fsec, int *tzp);
static int tm2time(struct tm * tm, fsec_t fsec, TimeADT *result);
static int tm2timetz(struct tm * tm, fsec_t fsec, int tz, TimeTzADT *result);
static void AdjustTimeForTypmod(TimeADT *time, int32 typmod);
/*****************************************************************************
@@ -525,7 +533,7 @@ time_in(PG_FUNCTION_ARGS)
/* tm2time()
* Convert a tm structure to a time data type.
*/
int
static int
tm2time(struct tm * tm, fsec_t fsec, TimeADT *result)
{
#ifdef HAVE_INT64_TIMESTAMP
@@ -542,7 +550,7 @@ tm2time(struct tm * tm, fsec_t fsec, TimeADT *result)
* For dates within the system-supported time_t range, convert to the
* local time zone. If out of this range, leave as GMT. - tgl 97/05/27
*/
int
static int
time2tm(TimeADT time, struct tm * tm, fsec_t *fsec)
{
#ifdef HAVE_INT64_TIMESTAMP
@@ -1285,7 +1293,7 @@ time_part(PG_FUNCTION_ARGS)
/* tm2timetz()
* Convert a tm structure to a time data type.
*/
int
static int
tm2timetz(struct tm * tm, fsec_t fsec, int tz, TimeTzADT *result)
{
#ifdef HAVE_INT64_TIMESTAMP
@@ -1357,7 +1365,7 @@ timetz_out(PG_FUNCTION_ARGS)
* For dates within the system-supported time_t range, convert to the
* local time zone. If out of this range, leave as GMT. - tgl 97/05/27
*/
int
static int
timetz2tm(TimeTzADT *time, struct tm * tm, fsec_t *fsec, int *tzp)
{
#ifdef HAVE_INT64_TIMESTAMP