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| author | Bruce Momjian <bruce@momjian.us> | 1999-12-21 17:01:44 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 1999-12-21 17:01:44 +0000 |
| commit | bb50fb517f9f2a09891425173aeb150c07126778 (patch) | |
| tree | 664698a8aa1ef2f172d2240167425d260975828e | |
| parent | 04c78e2eb45ec20e02abd0aee1b8a59068ee26c1 (diff) | |
| download | postgresql-bb50fb517f9f2a09891425173aeb150c07126778.tar.gz postgresql-bb50fb517f9f2a09891425173aeb150c07126778.zip | |
This patch will avoid SIGFPE on some geo functions , if PostgreSQL is compiled
with DEC C.
DEC C doesn't handle double values greater than DBL_MAX, but some
PostgreSQL geo functions assign greater than DBL_MAX values to some vars
in some special cases - that couses SIGFPE. I dunno if that is the only place
to fix to work well with DEC C.
Kirill Nosov.
| -rw-r--r-- | src/backend/utils/adt/geo_ops.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/backend/utils/adt/geo_ops.c b/src/backend/utils/adt/geo_ops.c index 7bb2aba7adc..b56b7f5d8da 100644 --- a/src/backend/utils/adt/geo_ops.c +++ b/src/backend/utils/adt/geo_ops.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.45 1999/07/17 20:17:56 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.46 1999/12/21 17:01:44 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -876,7 +876,10 @@ line_construct_pm(Point *pt, double m) /* use "mx - y + yinter = 0" */ result->A = m; result->B = -1.0; - result->C = pt->y - m * pt->x; + if (m==DBL_MAX) + result->C = pt->y; + else + result->C = pt->y - m * pt->x; #ifdef NOT_USED result->m = m; |