Sort functions in libc.math

Sorting alphabetically by function name makes it easier to audit
changes.

Also changes "type *" -> "type*"

Cython/Includes/libc/math.pxd

@@ -24,80 +24,68 @@ cdef extern from "<math.h>" nogil:
     const long double HUGE_VALL
 
     double acos(double x)
+    double acosh(double x)
     double asin(double x)
+    double asinh(double x)
     double atan(double x)
     double atan2(double y, double x)
-    double cos(double x)
-    double sin(double x)
-    double tan(double x)
-
-    double cosh(double x)
-    double sinh(double x)
-    double tanh(double x)
-    double acosh(double x)
-    double asinh(double x)
     double atanh(double x)
-
-    double hypot(double x, double y)
-
-    double exp(double x)
-    double exp2(double x)
-    double expm1(double x)
-    double log(double x)
-    double logb(double x)
-    double log2(double x)
-    double log10(double x)
-    double log1p(double x)
-    int ilogb(double x)
-
-    double lgamma(double x)
-    double tgamma(double x)
-
-    double frexp(double x, int* exponent)
-    double ldexp(double x, int exponent)
-
-    double modf(double x, double* iptr)
-    double fmod(double x, double y)
-    double remainder(double x, double y)
-    double remquo(double x, double y, int *quot)
-    double pow(double x, double y)
-    double sqrt(double x)
     double cbrt(double x)
-
-    double fabs(double x)
     double ceil(double x)
-    double floor(double x)
-    double trunc(double x)
-    double rint(double x)
-    double round(double x)
-    double nearbyint(double x)
-    double nextafter(double, double)
-    double nexttoward(double, long double)
-
-    long long llrint(double)
-    long lrint(double)
-    long long llround(double)
-    long lround(double)
-
     double copysign(double, double)
     float copysignf(float, float)
     long double copysignl(long double, long double)
-
+    double cos(double x)
+    double cosh(double x)
     double erf(double)
-    float erff(float)
-    long double erfl(long double)
     double erfc(double)
     float erfcf(float)
     long double erfcl(long double)
-
+    float erff(float)
+    long double erfl(long double)
+    double exp(double x)
+    double exp2(double x)
+    double expm1(double x)
+    double fabs(double x)
     double fdim(double x, double y)
+    double floor(double x)
     double fma(double x, double y, double z)
     double fmax(double x, double y)
     double fmin(double x, double y)
+    double fmod(double x, double y)
+    double frexp(double x, int* exponent)
+    double hypot(double x, double y)
+    int ilogb(double x)
+    double ldexp(double x, int exponent)
+    double lgamma(double x)
+    long long llrint(double)
+    long long llround(double)
+    double log(double x)
+    double log10(double x)
+    double log1p(double x)
+    double log2(double x)
+    double logb(double x)
+    long lrint(double)
+    long lround(double)
+    double modf(double x, double* iptr)
+    double nan(const char*)
+    double nearbyint(double x)
+    double nextafter(double, double)
+    double nexttoward(double, long double)
+    double pow(double x, double y)
+    double remainder(double x, double y)
+    double remquo(double x, double y, int* quot)
+    double rint(double x)
+    double round(double x)
     double scalbln(double x, long n)
     double scalbn(double x, int n)
-
-    double nan(const char*)
+    double sin(double x)
+    double sinh(double x)
+    double sqrt(double x)
+    double tan(double x)
+    double tanh(double x)
+    double tgamma(double x)
+    double trunc(double x)
 
     int isinf(long double)   # -1 / 0 / 1
     bint isfinite(long double)