diff options
Diffstat (limited to 'io.c')
| -rw-r--r-- | io.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -3425,7 +3425,8 @@ io_reopen(VALUE io, VALUE nfile) if (fptr == orig) return io; #if !defined __CYGWIN__ if (IS_PREP_STDIO(fptr)) { - if ((fptr->mode & FMODE_READWRITE) != (orig->mode & FMODE_READWRITE)) { + if (((fptr->mode & FMODE_READWRITE) & (orig->mode & FMODE_READWRITE)) != + (fptr->mode & FMODE_READWRITE)) { rb_raise(rb_eArgError, "%s can't change access mode from \"%s\" to \"%s\"", PREP_STDIO_NAME(fptr), rb_io_flags_mode(fptr->mode), @@ -3536,7 +3537,8 @@ rb_io_reopen(int argc, VALUE *argv, VALUE file) if (!NIL_P(nmode)) { int flags = rb_io_mode_flags(StringValuePtr(nmode)); if (IS_PREP_STDIO(fptr) && - (fptr->mode & FMODE_READWRITE) != (flags & FMODE_READWRITE)) { + ((fptr->mode & FMODE_READWRITE) & (flags & FMODE_READWRITE)) != + (fptr->mode & FMODE_READWRITE)) { rb_raise(rb_eArgError, "%s can't change access mode from \"%s\" to \"%s\"", PREP_STDIO_NAME(fptr), rb_io_flags_mode(fptr->mode), |