- replace dtoa w/ David's gdtoa, version 2008-03-15

- provide proper dtoa locks
- use the real strtof implementation
- add strtold, __hdtoa, __hldtoa
- add %a/%A support
- don't lose precision in printf, don't round to double anymore
- implement extended-precision versions of libc functions: fpclassify,
isnan, isinf, signbit, isnormal, isfinite, now that the ieee.h is
fixed
- separate vax versions of strtof, and __hdtoa
- add complex math support.  added functions: cacos, casin, catan,
ccos, csin, ctan, cacosh, casinh, catanh, ccosh, csinh, ctanh, cexp,
clog, cabs, cpow, csqrt, carg, cimag, conj, cproj, creal, cacosf,
casinf, catanf, ccosf, csinf, ctanf, cacoshf, casinhf, catanhf,
ccoshf, csinhf, ctanhf, cexpf, clogf, cabsf, cpowf, csqrtf, cargf,
cimagf, conjf, cprojf, crealf
- add fdim, fmax, fmin
- add log2. (adapted implementation e_log.c.  could be more acruate
& faster, but it's good enough for now)
- remove wrappers & cruft in libm, supposed to work-around mistakes
in SVID, etc.;  use ieee versions.  fixes issues in python 2.6 for
djm@
- make _digittoint static
- proper definitions for i386, and amd64 in ieee.h
- sh, powerpc don't really have extended-precision
- add missing definitions for mips64 (quad), m{6,8}k (96-bit) float.h
for LDBL_*
- merge lead to frac for m{6,8}k, for gdtoa to work properly
- add FRAC*BITS & EXT_TO_ARRAY32 definitions in ieee.h, for hdtoa&ldtoa
to use
- add EXT_IMPLICIT_NBIT definition, which indicates implicit
normalization bit
- add regression tests for libc: fpclassify and printf
- arith.h & gd_qnan.h definitions
- update ieee.h: hppa doesn't have quad-precision, hppa64 does
- add missing prototypes to gdtoaimp
- on 64-bit platforms make sure gdtoa doesn't use a long when it
really wants an int
- etc., what i may have forgotten...
- bump libm major, due to removed&changed symbols
- no libc bump, since this is riding on djm's libc major crank from
a day ago

discussed with / requested by / testing theo, sthen@, djm@, jsg@,
merdely@, jsing@, tedu@, brad@, jakemsr@, and others.
looks good to millert@
parts of the diff ok kettenis@

this commit does not include:
- man page changes

7 files changed, 161 insertions, 4 deletions

diff --git a/lib/libc/arch/mips64/gen/Makefile.inc b/lib/libc/arch/mips64/gen/Makefile.inc
index 3063795496a..2098bcc4d93 100644
--- a/lib/libc/arch/mips64/gen/Makefile.inc
+++ b/lib/libc/arch/mips64/gen/Makefile.inc
@@ -1,8 +1,9 @@
-#	$OpenBSD: Makefile.inc,v 1.5 2008/07/25 08:00:01 martynas Exp $
+#	$OpenBSD: Makefile.inc,v 1.6 2008/09/07 20:36:07 martynas Exp $
 
 SRCS+=	_setjmp.S fabs.S infinity.c ldexp.S modf.S nan.c
 SRCS+=	flt_rounds.c fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c \
 	fpsetround.c fpsetsticky.c
+SRCS+=	fpclassifyl.c isfinitel.c isinfl.c isnanl.c isnormall.c
 SRCS+=	setjmp.S sigsetjmp.S
 
 SRCS+=	alloca.c
diff --git a/lib/libc/arch/mips64/gen/fpclassifyl.c b/lib/libc/arch/mips64/gen/fpclassifyl.c
new file mode 100644
index 00000000000..030e9c8aac4
--- /dev/null
+++ b/lib/libc/arch/mips64/gen/fpclassifyl.c
@@ -0,0 +1,44 @@
+/*	$OpenBSD: fpclassifyl.c,v 1.1 2008/09/07 20:36:07 martynas Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+#include <math.h>
+
+int
+__fpclassifyl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	if (p->ext_exp == 0) {
+		if (p->ext_frach == 0 && p->ext_frachm == 0 &&
+		    p->ext_fraclm == 0 && p->ext_fracl == 0)
+			return FP_ZERO;
+		else
+			return FP_SUBNORMAL;
+	}
+
+	if (p->ext_exp == EXT_EXP_INFNAN) {
+		if (p->ext_frach == 0 && p->ext_frachm == 0 &&
+		    p->ext_fraclm == 0 && p->ext_fracl == 0)
+			return FP_INFINITE;
+		else
+			return FP_NAN;
+	}
+
+	return FP_NORMAL;
+}
diff --git a/lib/libc/arch/mips64/gen/isfinitel.c b/lib/libc/arch/mips64/gen/isfinitel.c
new file mode 100644
index 00000000000..c86b9309da4
--- /dev/null
+++ b/lib/libc/arch/mips64/gen/isfinitel.c
@@ -0,0 +1,27 @@
+/*	$OpenBSD: isfinitel.c,v 1.1 2008/09/07 20:36:07 martynas Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+__isfinitel(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp != EXT_EXP_INFNAN);
+}
diff --git a/lib/libc/arch/mips64/gen/isinfl.c b/lib/libc/arch/mips64/gen/isinfl.c
new file mode 100644
index 00000000000..c529a91cd2f
--- /dev/null
+++ b/lib/libc/arch/mips64/gen/isinfl.c
@@ -0,0 +1,29 @@
+/*	$OpenBSD: isinfl.c,v 1.1 2008/09/07 20:36:07 martynas Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+__isinfl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp == EXT_EXP_INFNAN &&
+	    p->ext_frach == 0 && p->ext_frachm == 0 &&
+	    p->ext_fraclm == 0 && p->ext_fracl == 0);
+}
diff --git a/lib/libc/arch/mips64/gen/isnanl.c b/lib/libc/arch/mips64/gen/isnanl.c
new file mode 100644
index 00000000000..1838fcfe3fa
--- /dev/null
+++ b/lib/libc/arch/mips64/gen/isnanl.c
@@ -0,0 +1,29 @@
+/*	$OpenBSD: isnanl.c,v 1.1 2008/09/07 20:36:07 martynas Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+__isnanl(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp == EXT_EXP_INFNAN &&
+	    (p->ext_frach != 0 || p->ext_frachm != 0 ||
+	     p->ext_fraclm != 0 || p->ext_fracl != 0));
+}
diff --git a/lib/libc/arch/mips64/gen/isnormall.c b/lib/libc/arch/mips64/gen/isnormall.c
new file mode 100644
index 00000000000..a8b4314afc9
--- /dev/null
+++ b/lib/libc/arch/mips64/gen/isnormall.c
@@ -0,0 +1,27 @@
+/*	$OpenBSD: isnormall.c,v 1.1 2008/09/07 20:36:07 martynas Exp $	*/
+/*
+ * Copyright (c) 2008 Martynas Venckus <martynas@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <machine/ieee.h>
+
+int
+__isnormall(long double e)
+{
+	struct ieee_ext *p = (struct ieee_ext *)&e;
+
+	return (p->ext_exp != 0 && p->ext_exp != EXT_EXP_INFNAN);
+}
diff --git a/lib/libc/arch/mips64/gen/nan.c b/lib/libc/arch/mips64/gen/nan.c
index 62f2e1ad916..73ebf3b9a0f 100644
--- a/lib/libc/arch/mips64/gen/nan.c
+++ b/lib/libc/arch/mips64/gen/nan.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: nan.c,v 1.1 2008/07/24 09:31:06 martynas Exp $	*/
+/*	$OpenBSD: nan.c,v 1.2 2008/09/07 20:36:07 martynas Exp $	*/
 
 /* Written by Martynas Venckus.  Public Domain. */
 
@@ -9,7 +9,7 @@
 /* bytes for qNaN on a mips64 (IEEE single format) */
 char __nan[] __attribute__((__aligned__(sizeof(float)))) =
 #if BYTE_ORDER == BIG_ENDIAN
-					{ 0x7f, 0xa0, 0, 0 };
+					{ 0x7f, 0xc0, 0, 0 };
 #else /* BYTE_ORDER == BIG_ENDIAN */
-					{ 0, 0, 0xa0, 0x7f };
+					{ 0, 0, 0xc0, 0x7f };
 #endif /* BYTE_ORDER == BIG_ENDIAN */