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| author | Paul Brook <pbrook@gcc.gnu.org> | 2004-10-04 15:33:18 +0000 |
|---|---|---|
| committer | Paul Brook <pbrook@gcc.gnu.org> | 2004-10-04 15:33:18 +0000 |
| commit | 06e4f02a16465f976c9f1a179fd2c60fb76e9659 (patch) | |
| tree | 4114a0c97da613eea429829446e76db65fd5d026 /libgfortran/io/write.c | |
| parent | f3e41701124d2c5a838c28b99bbc4d8fd69e381e (diff) | |
| download | gcc-06e4f02a16465f976c9f1a179fd2c60fb76e9659.zip gcc-06e4f02a16465f976c9f1a179fd2c60fb76e9659.tar.gz gcc-06e4f02a16465f976c9f1a179fd2c60fb76e9659.tar.bz2 | |
re PR libfortran/17706 (reading a value of 0.0 gives a value of -0.0)
2004-10-04 Paul Brook <paul@codesourcery.com>
Bud Davis <bdavis9659@comcast.net>
PR fortran/17706
PR fortran/16434
* io/format.c (parse_format_list): Set repeat count for S, SP, SS,
BN and BZ formats.
* io/write.c (output_float): Don't output minus zero.
libgfortran/
* gfortran/pr17706.f90: New test.
* gfortran.dg/g77/f77-edit-s-out.f: Remove xfail.
Actually apply the patch this time.
From-SVN: r88513
Diffstat (limited to 'libgfortran/io/write.c')
| -rw-r--r-- | libgfortran/io/write.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/libgfortran/io/write.c b/libgfortran/io/write.c index 4e22b70..f98ec1f 100644 --- a/libgfortran/io/write.c +++ b/libgfortran/io/write.c @@ -425,9 +425,12 @@ output_float (fnode *f, double value, int len) } /* Round the value. */ - if (nbefore + nafter < ndigits && nbefore + nafter > 0) + if (nbefore + nafter == 0) + ndigits = 0; + else if (nbefore + nafter < ndigits) { - i = nbefore + nafter; + ndigits = nbefore + nafter; + i = ndigits; if (digits[i] >= '5') { /* Propagate the carry. */ @@ -513,6 +516,16 @@ output_float (fnode *f, double value, int len) if (out == NULL) return; + /* Zero values always output as positive, even if the value was negative + before rounding. */ + for (i = 0; i < ndigits; i++) + { + if (digits[i] != '0') + break; + } + if (i == ndigits) + sign = calculate_sign (0); + /* Work out how much padding is needed. */ nblanks = w - (nbefore + nzero + nafter + edigits + 1); if (sign != SIGN_NONE) |