diff options
Diffstat (limited to 'src/backend/utils/misc/guc.c')
| -rw-r--r-- | src/backend/utils/misc/guc.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 1c4f9ac04e6..fe6c6f8a05a 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -6240,15 +6240,13 @@ parse_real(const char *value, double *result, int flags, const char **hintmsg) if (hintmsg) *hintmsg = NULL; + errno = 0; val = strtod(value, &endptr); - if (endptr == value) - return false; /* no HINT for syntax error */ - /* - * We ignore strtod's errno, so that out-of-range inputs will just result - * in zero or infinity values. Subsequent range checks will reject those - * if necessary. We do need to reject NaN explicitly, however. - */ + if (endptr == value || errno == ERANGE) + return false; /* no HINT for these cases */ + + /* reject NaN (infinities will fail range checks later) */ if (isnan(val)) return false; /* treat same as syntax error; no HINT */ |