$^E is not Win32::GetLastError under Cygwin

[p5sagit/p5-mst-13.2.git] / sv.c

diff --git a/sv.c b/sv.c
index 4a21107..f94e1ba 100644 (file)
--- a/sv.c
+++ b/sv.c
@@ -354,7 +354,7 @@ Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags)
 #ifdef DEBUGGING
        SvREFCNT(sv) = 0;
 #endif
-       /* Must always set typemask because it's awlays checked in on cleanup
+       /* Must always set typemask because it's always checked in on cleanup
           when the arenas are walked looking for objects.  */
        SvFLAGS(sv) = SVTYPEMASK;
        sv++;
@@ -9194,7 +9194,9 @@ Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV
                : SvNV(argsv);
 
            need = 0;
-           if (c != 'e' && c != 'E') {
+           /* nv * 0 will be NaN for NaN, +Inf and -Inf, and 0 for anything
+              else. frexp() has some unspecified behaviour for those three */
+           if (c != 'e' && c != 'E' && (nv * 0) == 0) {
                i = PERL_INT_MIN;
                /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this
                   will cast our (long double) to (double) */
@@ -12077,6 +12079,11 @@ S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match)
        match = 1; /* XS or custom code could trigger random warnings */
        goto do_op;
 
+    case OP_POS:
+       /* def-ness of rval pos() is independent of the def-ness of its arg */
+       if ( !(obase->op_flags & OPf_MOD))
+           break;
+
     case OP_SCHOMP:
     case OP_CHOMP:
        if (SvROK(PL_rs) && uninit_sv == SvRV(PL_rs))