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Check for ERANGE in exp() as well.

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Improve release docs for ecpg regression tests.
This commit is contained in:
Bruce Momjian 2007-01-06 15:18:03 +00:00
parent 19ce06b91b
commit e80b0bd69d
2 changed files with 7 additions and 5 deletions
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10
src/backend/utils/adt/float.c
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@ -8,7 +8,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.144 2007/01/06 04:14:55 momjian Exp $ * $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.145 2007/01/06 15:18:02 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1444,8 +1444,8 @@ dpow(PG_FUNCTION_ARGS)
* using errno. However, some platform/CPU combinations return * using errno. However, some platform/CPU combinations return
* errno == EDOM and result == Nan for negative arg1 and very large arg2 * errno == EDOM and result == Nan for negative arg1 and very large arg2
* (they must be using something different from our floor() test to * (they must be using something different from our floor() test to
* decide it's invalid). Other platforms return errno == ERANGE and a * decide it's invalid). Other platforms (HPPA) return errno == ERANGE
* large but finite result to signal overflow. * and a large (HUGE_VAL) but finite result to signal overflow.
*/ */
errno = 0; errno = 0;
result = pow(arg1, arg2); result = pow(arg1, arg2);
@ -1459,7 +1459,6 @@ dpow(PG_FUNCTION_ARGS)
else else
result = 1; result = 1;
} }
/* Some platoforms, e.g. HPPA, return ERANGE, but HUGE_VAL, not Inf */
else if (errno == ERANGE && !isinf(result)) else if (errno == ERANGE && !isinf(result))
result = get_float8_infinity(); result = get_float8_infinity();
@ -1477,7 +1476,10 @@ dexp(PG_FUNCTION_ARGS)
float8 arg1 = PG_GETARG_FLOAT8(0); float8 arg1 = PG_GETARG_FLOAT8(0);
float8 result; float8 result;
errno = 0;
result = exp(arg1); result = exp(arg1);
if (errno == ERANGE && !isinf(result))
result = get_float8_infinity();
CHECKFLOATVAL(result, isinf(arg1), false); CHECKFLOATVAL(result, isinf(arg1), false);
PG_RETURN_FLOAT8(result); PG_RETURN_FLOAT8(result);

2
src/tools/RELEASE_CHANGES
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@ -35,7 +35,7 @@ For Major Releases
* Bump library versions, if appropriate (see below) * Bump library versions, if appropriate (see below)
o src/interfaces/*/Makefile o src/interfaces/*/Makefile
o src/interfaces/*/*/Makefile o src/interfaces/*/*/Makefile
o update ecpg regression expected files o update ecpg regression expected files for new library number
* Release notes * Release notes
o check that dashed items from the TODO list are complete o check that dashed items from the TODO list are complete