diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/real.c | 22 |
2 files changed, 26 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 93ff3b70..4f16907 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2008-05-16 Doug Kwan <dougkwan@google.com> + + * real.c (real_to_decimal, real_to_hexadecimal): Distinguish + QNaN & SNaN. + (real_from_string): Handle NaNs and Inf as approriate. + 2008-05-16 Nathan Froyd <froydnj@codesourcery.com> * doc/gty.texi (Source Files Containing Type Information): Note @@ -1471,7 +1471,8 @@ real_to_decimal (char *str, const REAL_VALUE_TYPE *r_orig, size_t buf_size, return; case rvc_nan: /* ??? Print the significand as well, if not canonical? */ - strcpy (str, (r.sign ? "-NaN" : "+NaN")); + sprintf (str, "%c%cNaN", (r_orig->sign ? '-' : '+'), + (r_orig->signalling ? 'S' : 'Q')); return; default: gcc_unreachable (); @@ -1743,7 +1744,8 @@ real_to_hexadecimal (char *str, const REAL_VALUE_TYPE *r, size_t buf_size, return; case rvc_nan: /* ??? Print the significand as well, if not canonical? */ - strcpy (str, (r->sign ? "-NaN" : "+NaN")); + sprintf (str, "%c%cNaN", (r->sign ? '-' : '+'), + (r->signalling ? 'S' : 'Q')); return; default: gcc_unreachable (); @@ -1812,6 +1814,22 @@ real_from_string (REAL_VALUE_TYPE *r, const char *str) else if (*str == '+') str++; + if (!strncmp (str, "QNaN", 4)) + { + get_canonical_qnan (r, sign); + return 0; + } + else if (!strncmp (str, "SNaN", 4)) + { + get_canonical_snan (r, sign); + return 0; + } + else if (!strncmp (str, "Inf", 3)) + { + get_inf (r, sign); + return 0; + } + if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X')) { /* Hexadecimal floating point. */ |