xiaoxiang781216 commented on a change in pull request #2076:
URL: https://github.com/apache/incubator-nuttx/pull/2076#discussion_r511288220
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File path: include/nuttx/lib/math.h
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@@ -233,22 +251,77 @@ long double powl (long double b, long double e);
#endif
float expf (float x);
-#define expm1f(x) (expf(x) - 1.0)
+float exp2f (float x);
+float expm1f(float x);
#ifdef CONFIG_HAVE_DOUBLE
double exp (double x);
-#define expm1(x) (exp(x) - 1.0)
+double exp2 (double x);
+double expm1 (double x);
#endif
#ifdef CONFIG_HAVE_LONG_DOUBLE
long double expl (long double x);
-#define expm1l(x) (expl(x) - 1.0)
+long double exp2l (long double x);
+long double expm1l(long double x);
#endif
+float fdimf(float x, float y);
+#ifdef CONFIG_HAVE_DOUBLE
+double fdim(double x, double y);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double fdiml(long double x, long double y);
+#endif
+
+float fmaf(float x, float y, float z);
+#ifdef CONFIG_HAVE_DOUBLE
+double fma(double x, double y, double z);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double fmal(long double x, long double y, long double z);
+#endif
+
+float fmaxf(float x, float y);
+#ifdef CONFIG_HAVE_DOUBLE
+double fmax(double x, double y);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double fmaxl(long double x, long double y);
+#endif
+
+float fminf(float x, float y);
+#ifdef CONFIG_HAVE_DOUBLE
+double fmin(double x, double y);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double fminl(long double x, long double y);
+#endif
+
+float hypotf(float x, float y);
+#ifdef CONFIG_HAVE_DOUBLE
+double hypot(double x, double y);
+#endif
+#ifdef CONFIG_HAVE_LONG_DOUBLE
+long double hypotl(long double x, long double y);
Review comment:
Many new added function don't have the implementation?
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