diff options
| -rw-r--r-- | sv.c | 6 | ||||
| -rw-r--r-- | t/op/64bitint.t | 8 |
2 files changed, 13 insertions, 1 deletions
@@ -1678,6 +1678,12 @@ S_sv_2iuv_non_preserve (pTHX_ register SV *sv, I32 numtype) SvIsUV_on(sv); SvUVX(sv) = U_V(SvNVX(sv)); if ((NV)(SvUVX(sv)) == SvNVX(sv)) { + if (SvUVX(sv) == UV_MAX) { + /* As we know that NVs don't preserve UVs, UV_MAX cannot + possibly be preserved by NV. Hence, it must be overflow. + NOK, IOKp */ + return IS_NUMBER_OVERFLOW_UV; + } SvIOK_on(sv); /* Integer is precise. NOK, UOK */ } else { /* Integer is imprecise. NOK, IOKp */ diff --git a/t/op/64bitint.t b/t/op/64bitint.t index 47779dd058..c34d188c37 100644 --- a/t/op/64bitint.t +++ b/t/op/64bitint.t @@ -16,7 +16,7 @@ BEGIN { # 32+ bit integers don't cause noise no warnings qw(overflow portable); -print "1..57\n"; +print "1..58\n"; my $q = 12345678901; my $r = 23456789012; @@ -320,4 +320,10 @@ if ($num eq $string) { print "not ok 57 # \"$num\" ne \"$string\"\n"; } +$q = "18446744073709551616e0"; +$q += 0; +print "# \"18446744073709551616e0\" += 0 gives $q\nnot " if "$q" eq "18446744073709551615"; +print "ok 58\n"; + + # eof |