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Use finite() macro if available to check returns from pow() and exp().

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This commit is contained in:
Thomas G. Lockhart 1997-06-03 13:58:06 +00:00
parent 93ac35f06c
commit fe74581fa0
1 changed files with 13 additions and 1 deletions
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14
src/backend/utils/adt/float.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.15 1997/05/14 04:35:10 thomas Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.16 1997/06/03 13:58:06 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -974,9 +974,15 @@ float64 dpow(float64 arg1, float64 arg2)
tmp1 = *arg1; tmp1 = *arg1;
tmp2 = *arg2; tmp2 = *arg2;
#ifndef finite
errno = 0; errno = 0;
#endif
*result = (float64data) pow(tmp1, tmp2); *result = (float64data) pow(tmp1, tmp2);
#ifndef finite
if (errno == ERANGE) if (errno == ERANGE)
#else
if (!finite(*result))
#endif
elog(WARN, "pow() returned a floating point out of the range\n"); elog(WARN, "pow() returned a floating point out of the range\n");
CheckFloat8Val(*result); CheckFloat8Val(*result);
@ -998,9 +1004,15 @@ float64 dexp(float64 arg1)
result = (float64) palloc(sizeof(float64data)); result = (float64) palloc(sizeof(float64data));
tmp = *arg1; tmp = *arg1;
#ifndef finite
errno = 0; errno = 0;
#endif
*result = (float64data) exp(tmp); *result = (float64data) exp(tmp);
#ifndef finite
if (errno == ERANGE) if (errno == ERANGE)
#else
if (!finite(*result))
#endif
elog(WARN, "exp() returned a floating point out of range\n"); elog(WARN, "exp() returned a floating point out of range\n");
CheckFloat8Val(*result); CheckFloat8Val(*result);