diff options
Diffstat (limited to 'newlib/libc')
| -rw-r--r-- | newlib/libc/include/math.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/newlib/libc/include/math.h b/newlib/libc/include/math.h index 9bfaca2a9..dc8fe9c74 100644 --- 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 |