From: Hartmut Holzgraefe <hholzgra@php.net>
Date: Sat, 8 Apr 2000 23:53:19 +0000 (+0000)
Subject: added the other usefull constants besides M_PI from math.h
X-Git-Tag: php-4.0RC2~433
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=744fe82e0a1e1b6858262d42dd89cffc48d51816;p=php

added the other usefull constants besides M_PI from math.h
 as PHP constants
---

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 97e3d2942c..46478cef21 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -23,6 +23,7 @@
 #include "php_ini.h"
 #include "internal_functions_registry.h"
 #include "php_standard.h"
+#include "phpmath.h"
 #include "ext/standard/info.h"
 #include "zend_operators.h"
 #include <stdarg.h>
@@ -568,9 +569,6 @@ static void php_putenv_destructor(putenv_entry *pe)
 }
 #endif
 
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
 
 void test_class_startup(void);
 
@@ -599,8 +597,22 @@ PHP_MINIT_FUNCTION(basic)
 	basic_globals_ctor(BLS_C);
 #endif
 	
-	REGISTER_DOUBLE_CONSTANT("M_PI", M_PI, CONST_CS | CONST_PERSISTENT);
-	
+#define REGISTER_MATH_CONSTANT(x)  REGISTER_DOUBLE_CONSTANT(#x, x, CONST_CS | CONST_PERSISTENT)
+	REGISTER_MATH_CONSTANT(M_E);
+	REGISTER_MATH_CONSTANT(M_LOG2E);
+	REGISTER_MATH_CONSTANT(M_LOG10E);
+	REGISTER_MATH_CONSTANT(M_LN2);
+	REGISTER_MATH_CONSTANT(M_LN10);
+	REGISTER_MATH_CONSTANT(M_PI);
+	REGISTER_MATH_CONSTANT(M_PI_2);
+	REGISTER_MATH_CONSTANT(M_PI_4);
+	REGISTER_MATH_CONSTANT(M_1_PI);
+	REGISTER_MATH_CONSTANT(M_2_PI);
+	REGISTER_MATH_CONSTANT(M_2_SQRTPI);
+	REGISTER_MATH_CONSTANT(M_SQRT2);
+	REGISTER_MATH_CONSTANT(M_SQRT1_2);
+
+
 	test_class_startup();
 	REGISTER_INI_ENTRIES();
 
diff --git a/ext/standard/math.c b/ext/standard/math.c
index b5ecf38fd9..fbc457abb4 100644
--- a/ext/standard/math.c
+++ b/ext/standard/math.c
@@ -30,6 +30,7 @@
 #define M_PI 3.14159265358979323846
 #endif
 
+
 char *_php_math_number_format(double, int, char ,char);
 
 /* {{{ proto int abs(int number)
diff --git a/ext/standard/phpmath.h b/ext/standard/phpmath.h
index f9d56abd5b..77ee5363df 100644
--- a/ext/standard/phpmath.h
+++ b/ext/standard/phpmath.h
@@ -67,4 +67,57 @@ PHP_FUNCTION(number_format);
 PHP_FUNCTION(deg2rad);
 PHP_FUNCTION(rad2deg);
 
+
+#ifndef M_E
+#define M_E            2.7182818284590452354   /* e */
+#endif
+
+#ifndef M_LOG2E
+#define M_LOG2E        1.4426950408889634074   /* log_2 e */
+#endif
+
+#ifndef M_LOG10E
+#define M_LOG10E       0.43429448190325182765  /* log_10 e */
+#endif
+
+#ifndef M_LN2
+#define M_LN2          0.69314718055994530942  /* log_e 2 */
+#endif
+
+#ifndef M_LN10
+#define M_LN10         2.30258509299404568402  /* log_e 10 */
+#endif
+
+#ifndef M_PI
+#define M_PI           3.14159265358979323846  /* pi */
+#endif
+
+#ifndef M_PI_2
+#define M_PI_2         1.57079632679489661923  /* pi/2 */
+#endif
+
+#ifndef M_PI_4
+#define M_PI_4         0.78539816339744830962  /* pi/4 */
+#endif
+
+#ifndef M_1_PI
+#define M_1_PI         0.31830988618379067154  /* 1/pi */
+#endif
+
+#ifndef M_2_PI
+#define M_2_PI         0.63661977236758134308  /* 2/pi */
+#endif
+
+#ifndef M_2_SQRTPI
+#define M_2_SQRTPI     1.12837916709551257390  /* 2/sqrt(pi) */
+#endif
+
+#ifndef M_SQRT2
+#define M_SQRT2        1.41421356237309504880  /* sqrt(2) */
+#endif
+
+#ifndef M_SQRT1_2
+#define M_SQRT1_2      0.70710678118654752440  /* 1/sqrt(2) */
+#endif
+
 #endif /* _PHPMATH_H */