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* Add a comment describing why it's important for the values in thisdas2003-05-081-0/+7
| | | | | | file to be correct, and how to generate them automatically. Caused much pain and suffering for: peter
* Add __ldtoa(), a wrapper around gdtoa() to make it look like dtoa().das2003-04-051-0/+8
| | | | | | | In support of this, add some MD macros to assist in converting long doubles to the format expected by gdtoa(). Reviewed by: silence on standards@
* Replace our ancient dtoa/strtod implementation with the gdtoadas2003-03-122-0/+14
| | | | | | | | | | | | | | | | | | package, a more recent, generalized set of routines. Among the changes: - Declare strtof() and strtold() in stdlib.h. - Add glue to libc to support these routines for all kinds of ``long double''. - Update printf() to reflect the fact that dtoa works slightly differently now. As soon as I see that nothing has blown up, I will kill src/lib/libc/stdlib/strtod.c. Soon printf() will be able to use the new routines to output long doubles without loss of precision, but numerous bugs in the existing code must be addressed first. Reviewed by: bde (briefly), mike (mentor), obrien
* o Implement C99 classification macros isfinite(), isinf(), isnan(),mike2003-02-121-0/+5
| | | | | | | | | isnormal(). The current isinf() and isnan() are perserved for binary compatibility with 5.0, but new programs will use the macros. o Implement C99 comparison macros isgreater(), isgreaterequal(), isless(), islessequal(), islessgreater(), isunordered(). Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU>
* Implement fpclassify():mike2003-02-082-0/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | o Add a MD header private to libc called _fpmath.h; this header contains bitfield layouts of MD floating-point types. o Add a MI header private to libc called fpmath.h; this header contains bitfield layouts of MI floating-point types. o Add private libc variables to lib/libc/$arch/gen/infinity.c for storing NaN values. o Add __double_t and __float_t to <machine/_types.h>, and provide double_t and float_t typedefs in <math.h>. o Add some C99 manifest constants (FP_ILOGB0, FP_ILOGBNAN, HUGE_VALF, HUGE_VALL, INFINITY, NAN, and return values for fpclassify()) to <math.h> and others (FLT_EVAL_METHOD, DECIMAL_DIG) to <float.h> via <machine/float.h>. o Add C99 macro fpclassify() which calls __fpclassify{d,f,l}() based on the size of its argument. __fpclassifyl() is never called on alpha because (sizeof(long double) == sizeof(double)), which is good since __fpclassifyl() can't deal with such a small `long double'. This was developed by David Schultz and myself with input from bde and fenner. PR: 23103 Submitted by: David Schultz <dschultz@uclink.Berkeley.EDU> (significant portions) Reviewed by: bde, fenner (earlier versions)
* We don't need our own personal definition of __CONCAT.obrien2003-01-181-4/+1
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* Minimal libc for PowerPC.grehan2002-12-0418-0/+1149
| | | | | | Reviewed by: benno Approved by: re (blanket)
* _C_LABEL -> CNAMEbenno2002-05-171-14/+14
| | | | Forgotten by: benno
* Flesh this out, based on the NetBSD version.benno2002-05-171-10/+41
| | | | Reviewed by: obrien
* Grow RSYSCALL.obrien2002-05-151-0/+4
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* Blah, fix stupid syntax error.obrien2002-05-151-1/+1
| | | | (where's the hat?)
* host-network order conversion routines.obrien2002-05-155-0/+158
| | | | Luckily we are network order, so there is little to be done. :-)
* Beginnings of syscall bits for PowerPC. These are no doubtedly wrong,obrien2002-05-151-0/+43
but it gets the build father and is in the right direction. Partially obtained from: NetBSD
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