Changeset 2013 for trunk/src/emx/include/float.h

Timestamp:

Jun 12, 2005, 7:33:38 AM (20 years ago)

Author:

bird

Message:

o The smallcnv stuff is gone, waste of space since we're not really into

static linking. Should've done this when switching to gdtoa.

o Ported the msun and some other math bits from current FreeBSD libc.

This mostly replaces the EMX math, except for some double long variants
and some EMX specific ones. This is a risky change, but it's needed
if we're gonna catch up on the C99 bits and make libstdc++ happy.
There are some new headers, complex.h and fenv.h being the importan ones.
float.h have gotten some updates while math.h is totally replaced.
More than 100 standard functions were added!
NOTE: msun is using MATH_ERREXCEPT (math_errhandling) and not

MATH_ERRNO for error reporting.

I really hope this is not gonna uncover more OS/2 387 mess.

File:

• trunk/src/emx/include/float.h (modified) (3 diffs, 1 prop)

trunk/src/emx/include/float.h

@@ -1 +1 @@
 /* float.h,v 1.5 2004/09/14 22:27:33 bird Exp */
 /** @file
- * EMX + GCC
+ * EMX + GCC + Some FreeBSD Bits.
  *
  * @remark Must be used instead of the GCC one.
@@ -11 +11 @@
 #include <sys/cdefs.h>
 
+__BEGIN_DECLS
+extern int __flt_rounds(void);
+__END_DECLS
 
 #define FLT_RADIX       2               /* b */
-#define FLT_ROUNDS      1               /* FP addition rounds to nearest */
+#define FLT_ROUNDS      __flt_rounds()
+
 #define FLT_EVAL_METHOD (-1)            /* i387 semantics are...interesting */
 #define DECIMAL_DIG     21              /* max precision in decimal digits */
@@ -67 +71 @@
 #if !defined (__STRICT_ANSI__) && !defined (_POSIX_SOURCE) || defined(__USE_EMX)
 
-#define M_E             2.71828182845904523536
-#define M_LOG2E         1.44269504088896340736
-#define M_LOG10E        0.434294481903251827651
-#define M_LN2           0.693147180559945309422
-#define M_LN10          2.302585092994045684018
-
-#define M_PI            3.14159265358979323846
-#define M_PI_2          1.57079632679489661923
-#define M_PI_4          0.785398163397448309616
-#define M_1_PI          0.318309886183790671538
-#define M_2_PI          0.636619772367581343076
-#define M_2_SQRTPI      1.12837916709551257390
-
-#define M_SQRT2         1.41421356237309504880
-#define M_SQRT1_2       0.707106781186547524401
-
 #if !defined (_OMIT_387_STUFF)