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| author | Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> | 2011-11-08 23:54:43 +0000 |
|---|---|---|
| committer | François-Xavier Coudert <fxcoudert@gcc.gnu.org> | 2011-11-08 23:54:43 +0000 |
| commit | b35f6a97ab0d40701c3545d99f45b614ce9b5553 (patch) | |
| tree | 9a459cdd1fb882574e76a36ea3d2454777d3bedd /gcc/fortran/io.c | |
| parent | 4408b0865b29a502144810a61296e7711e042aa5 (diff) | |
| download | gcc-b35f6a97ab0d40701c3545d99f45b614ce9b5553.zip gcc-b35f6a97ab0d40701c3545d99f45b614ce9b5553.tar.gz gcc-b35f6a97ab0d40701c3545d99f45b614ce9b5553.tar.bz2 | |
re PR fortran/50404 (SIGSEGV in gfc_resolve_close)
PR fortran/50404
* io.c (gfc_resolve_close): CLOSE requires a UNIT.
* gfortran.dg/io_constraints_3.f90: Improve testcase.
From-SVN: r181183
Diffstat (limited to 'gcc/fortran/io.c')
| -rw-r--r-- | gcc/fortran/io.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/fortran/io.c b/gcc/fortran/io.c index a291bb8..88f7a249e 100644 --- a/gcc/fortran/io.c +++ b/gcc/fortran/io.c @@ -2295,6 +2295,24 @@ gfc_resolve_close (gfc_close *close) if (gfc_reference_st_label (close->err, ST_LABEL_TARGET) == FAILURE) return FAILURE; + if (close->unit == NULL) + { + /* Find a locus from one of the arguments to close, when UNIT is + not specified. */ + locus loc = gfc_current_locus; + if (close->status) + loc = close->status->where; + else if (close->iostat) + loc = close->iostat->where; + else if (close->iomsg) + loc = close->iomsg->where; + else if (close->err) + loc = close->err->where; + + gfc_error ("CLOSE statement at %L requires a UNIT number", &loc); + return FAILURE; + } + if (close->unit->expr_type == EXPR_CONSTANT && close->unit->ts.type == BT_INTEGER && mpz_sgn (close->unit->value.integer) < 0) |