2007-09-06 Jeff Johnston <jjohnstn@redhat.com>

        * libc/include/math.h (_M_LOG2E): New log2 of e macro.
        (log2): Use _M_LOG2E instead of M_LOG2E.
        (log2f): Ditto.
        (M_LOG2E): Define to be _M_LOG2E.

diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index b9551a1..187fc6a 100644 (file)
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,10 @@
+2007-09-06  Jeff Johnston  <jjohnstn@redhat.com>
+
+       * libc/include/math.h (_M_LOG2E): New log2 of e macro.
+       (log2): Use _M_LOG2E instead of M_LOG2E.
+       (log2f): Ditto.
+       (M_LOG2E): Define to be _M_LOG2E.
+
 2007-09-04  Kazunori Asayama <asayama@sm.sony.co.jp>
 
        * libm/math/wf_tgamma.c: Add missing include.

diff --git a/newlib/libc/include/math.h b/newlib/libc/include/math.h
index 9bfaca2..dc8fe9c 100644 (file)
--- a/newlib/libc/include/math.h
+++ b/newlib/libc/include/math.h
@@ -26,6 +26,10 @@ union __ldmath
   _LONG_DOUBLE ld;
 };
 
+/* Log2 of e */
+#define _M_LOG2E               1.4426950408889634074
+
+
 #if defined(__GNUC__) && \
   ( (__GNUC__ >= 4) || \
     ( (__GNUC__ >= 3) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 3) ) )
@@ -246,7 +250,7 @@ extern double gamma _PARAMS((double));
 extern double lgamma _PARAMS((double));
 extern double erf _PARAMS((double));
 extern double erfc _PARAMS((double));
-#define log2(x) (log (x) / M_LOG2_E)
+#define log2(x) (log (x) / _M_LOG2_E)
 
 #ifndef __math_68881
 extern double hypot _PARAMS((double, double));
@@ -323,7 +327,7 @@ extern float gammaf _PARAMS((float));
 extern float lgammaf _PARAMS((float));
 extern float erff _PARAMS((float));
 extern float erfcf _PARAMS((float));
-#define log2f(x) (logf (x) / (float) M_LOG2_E)
+#define log2f(x) (logf (x) / (float) _M_LOG2_E)
 extern float hypotf _PARAMS((float, float));
 #endif /* ! defined (_REENT_ONLY) */
 
@@ -420,7 +424,7 @@ extern int matherr _PARAMS((struct exception *e));
 #define MAXFLOAT       3.40282347e+38F
 
 #define M_E            2.7182818284590452354
-#define M_LOG2E                1.4426950408889634074
+#define M_LOG2E                _M_LOG2E
 #define M_LOG10E       0.43429448190325182765
 #define M_LN2          0.69314718055994530942
 #define M_LN10         2.30258509299404568402