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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 somePostgreSQL geo functions assign greater than DBL_MAX values to some varsin some special cases - that couses SIGFPE. I dunno if that is the only placeto fix to work well with DEC C.Kirill Nosov.

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src/backend/utils/adt
- geo_ops.c

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`‎src/backend/utils/adt/geo_ops.c`

Lines changed: 5 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@`
`7`	`7`	`*`
`8`	`8`	`*`
`9`	`9`	`* IDENTIFICATION`
`10`		`- * $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.45 1999/07/17 20:17:56 momjian Exp $`
	`10`	`+ * $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_ops.c,v 1.46 1999/12/2117:01:44 momjian Exp $`
`11`	`11`	`*`
`12`	`12`	`*-------------------------------------------------------------------------`
`13`	`13`	`*/`
`@@ -876,7 +876,10 @@ line_construct_pm(Point *pt, double m)`
`876`	`876`	`/* use "mx - y + yinter = 0" */`
`877`	`877`	`result->A=m;`
`878`	`878`	`result->B=-1.0;`
`879`		`-result->C=pt->y-m*pt->x;`
	`879`	`+if (m==DBL_MAX)`
	`880`	`+result->C=pt->y;`
	`881`	`+else`
	`882`	`+result->C=pt->y-m*pt->x;`
`880`	`883`
`881`	`884`	`#ifdefNOT_USED`
`882`	`885`	`result->m=m;`

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Commitbb50fb5

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`‎src/backend/utils/adt/geo_ops.c`

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