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Work around buggy strtod on (some versions of?) IRIX. Combination of

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proposed patches from John Jorgensen and Steve Singer.
This commit is contained in:
Tom Lane 2006-10-05 01:40:45 +00:00
parent 9e6c3582dd
commit b2c04d5e6b
2 changed files with 60 additions and 2 deletions
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54
src/backend/utils/adt/float.c
View file

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.129 2006/10/04 00:29:58 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/float.c,v 1.130 2006/10/05 01:40:45 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -328,6 +328,32 @@ float4in(PG_FUNCTION_ARGS)
}
#endif /* HAVE_BUGGY_SOLARIS_STRTOD */
#ifdef HAVE_BUGGY_IRIX_STRTOD
/*
* In some IRIX versions, strtod() recognizes only "inf", so if the
* input is "infinity" we have to skip over "inity". Also, it may
* return positive infinity for "-inf".
*/
if (isinf(val))
{
if (pg_strncasecmp(num, "Infinity", 8) == 0)
{
val = get_float4_infinity();
endptr = num + 8;
}
else if (pg_strncasecmp(num, "-Infinity", 9) == 0)
{
val = -get_float4_infinity();
endptr = num + 9;
}
else if (pg_strncasecmp(num, "-inf", 4) == 0)
{
val = -get_float4_infinity();
endptr = num + 4;
}
}
#endif /* HAVE_BUGGY_IRIX_STRTOD */
/* skip trailing whitespace */
while (*endptr != '\0' && isspace((unsigned char) *endptr))
endptr++;
@ -495,6 +521,32 @@ float8in(PG_FUNCTION_ARGS)
}
#endif /* HAVE_BUGGY_SOLARIS_STRTOD */
#ifdef HAVE_BUGGY_IRIX_STRTOD
/*
* In some IRIX versions, strtod() recognizes only "inf", so if the
* input is "infinity" we have to skip over "inity". Also, it may
* return positive infinity for "-inf".
*/
if (isinf(val))
{
if (pg_strncasecmp(num, "Infinity", 8) == 0)
{
val = get_float8_infinity();
endptr = num + 8;
}
else if (pg_strncasecmp(num, "-Infinity", 9) == 0)
{
val = -get_float8_infinity();
endptr = num + 9;
}
else if (pg_strncasecmp(num, "-inf", 4) == 0)
{
val = -get_float8_infinity();
endptr = num + 4;
}
}
#endif /* HAVE_BUGGY_IRIX_STRTOD */
/* skip trailing whitespace */
while (*endptr != '\0' && isspace((unsigned char) *endptr))
endptr++;

8
src/include/port/irix.h
View file

@ -1 +1,7 @@
/* $PostgreSQL: pgsql/src/include/port/irix.h,v 1.3 2006/03/11 04:38:38 momjian Exp $ */
/* $PostgreSQL: pgsql/src/include/port/irix.h,v 1.4 2006/10/05 01:40:45 tgl Exp $ */
/*
* IRIX 6.5.26f and 6.5.22f (at least) have a strtod() that accepts
* "infinity", but leaves endptr pointing to "inity".
*/
#define HAVE_BUGGY_IRIX_STRTOD