From 21e945d3ff4ad0c3e5ddf564cc69bfb4f46bc8f4 Mon Sep 17 00:00:00 2001
From: Kat Richey <thedarkqueenaeris@zoho.com>
Date: Sat, 28 May 2022 11:33:37 -0500
Subject: [PATCH] organising and adding new function definitions

---
 include/math.h | 105 +++++++++++++++++++++++++++++++++++++------------
 1 file changed, 80 insertions(+), 25 deletions(-)

diff --git a/include/math.h b/include/math.h
index a952a34..15ace50 100755
--- a/include/math.h
+++ b/include/math.h
@@ -29,12 +29,41 @@ typedef double double_t;
 #define INFINITY (1e5000)
 #define NAN (0.0f / 0.0f)
 
+/* iirc, this is how musl does it. */
+#define HUGE_VAL INFINITY
+#define HUGE_VALF ((float) INFINITY)
+#define HUGE_VALL ((long double) INFINITY)
+
+#define M_E 2.718281828
+#define M_PI 3.14159265
+#define PI 3.14159265
+#define M_PI_2 1.5707963268
+#define M_PI_4 0.7853981634
+#define M_1_PI 0.318309886184
+#define M_2_PI 0.636619772368
+#define M_2_SQRTPI 1.1283791671
+#define M_SQRT2 1.41421856237
+#define M_SQRT1_2 0.707106781187
+#define M_LOG2E 1.44269504089
+#define M_LOG10E 0.4342944819
+#define M_LN2 0.69314718056
+#define M_LN10 2.302585093
+
+#define MATH_ERRNO 1
+#define MATH_ERREXCEPT 2
+#define math_errhandling MATH_ERRNO
+
+#define FP_ILOGB0 INT_MIN
+#define FP_ILOGBNAN INT_MAX
+
 #define FP_INFINITE 1
 #define FP_NAN 2
 #define FP_NORMAL 3
 #define FP_SUBNORMAL 4
 #define FP_ZERO 0
 
+/* Classification Macros 7.12.3 */
+
 int __fpclassifyd(double x);
 int __fpclassifyf(float x);
 int __fpclassifyl(long double x);
@@ -63,27 +92,7 @@ int __signbitl(long double x);
                     (sizeof(x) == sizeof(double)) ? __signbitd(x) : \
                     __signbitl(x))
 
-#define M_E 2.718281828
-#define M_PI 3.14159265
-#define PI 3.14159265
-#define M_PI_2 1.5707963268
-#define M_PI_4 0.7853981634
-#define M_1_PI 0.318309886184
-#define M_2_PI 0.636619772368
-#define M_2_SQRTPI 1.1283791671
-#define M_SQRT2 1.41421856237
-#define M_SQRT1_2 0.707106781187
-#define M_LOG2E 1.44269504089
-#define M_LOG10E 0.4342944819
-#define M_LN2 0.69314718056
-#define M_LN10 2.302585093
-
-#define MATH_ERRNO 1
-#define MATH_ERREXCEPT 2
-#define math_errhandling MATH_ERRNO
-
-#define FP_ILOGB0 INT_MIN
-#define FP_ILOGBNAN INT_MAX
+/* Trigonometric Functions (ISO C Std. 7.12.4) */
 
 double acos(double);
 float acosf(float);
@@ -113,6 +122,8 @@ double tan(double);
 float tanf(float);
 long double tanl(long double);
 
+/* Hyperbolic Functions (ISO C Std. 7.12.5) */
+
 double acosh(double);
 float acoshf(float);
 long double acoshl(long double);
@@ -137,21 +148,65 @@ double tanh(double);
 float tanhf(float);
 long double tanhl(long double);
 
+/* Exponential and Logarithmic Functions (ISO C Std. 7.12.6) */
+
 double exp(double);
 float expf(float);
-long double expl(double);
+long double expl(long double);
 
 double exp2(double);
 float exp2f(float);
-long double exp2l(double);
+long double exp2l(long double);
 
 double expm1(double);
 float expm1f(float);
-long double expm1l(double);
+long double expm1l(long double);
 
 double frexp(double, int *);
 float frexpf(float, int *);
-long double frexpl(double, int *);
+long double frexpl(long double, int *);
+
+int ilogb(double);
+int ilogbf(float);
+int ilogbl(long double);
+
+double ldexp(double, int);
+float ldexpf(float, int);
+long double ldexpl(long double, int);
+
+double log(double);
+float logf(float);
+long double logl(long double);
+
+double log10(double);
+float log10f(float);
+long double log10l(long double);
+
+double log1p(double);
+float log1pf(float);
+long double log1pl(long double);
+
+double log2(double);
+float log2f(float);
+long double log2l(long double);
+
+double logb(double);
+float logbf(float);
+long double logbl(long double);
+
+double modf(double, double *);
+float modff(float, float *);
+long double modfl(long double, long double *);
+
+double scalbn(double, int);
+float scalbnf(float, int);
+long double scalbnl(long double, int);
+
+double scalbln(double, long);
+float scalblnf(float, long);
+long double scalblnl(long double, long);
+
+/* Power and Absolute Value Functions (ISO C Std. 7.12.7) */
 
 double fabs(double);
 float fabsf(float);