original files of m241

vxworks-6.9/target/h/private/mathP.h

@@ -0,0 +1,94 @@
+/* mathP.h - private definitions for math functions */
+
+/*
+ * Copyright 1990-1992, 1997, 2001, 2010 Wind River Systems, Inc.
+ *
+ * The right to copy, distribute or otherwise make use of this software
+ * may be licensed only pursuant to the terms of an applicable Wind River
+ * license agreement. 
+ *
+ */
+
+/*
+modification history
+--------------------
+01j,16apr10,mcm  Fixed WIND00192604 - the structure DOUBLE had not been
+                 adapted to LP64. The members l1 and l2 should be 32-bit
+                 integers not long.
+01i,03oct01,to   use IEEE little endian for ARM
+01h,23jan97,cdp  reverse words in double for ARM.
+01g,22sep92,rrr  added support for c++
+01f,04sep92,wmd  modified definition of DOUBLE for BIG/LITTLE ENDIAN architectures.
+01e,30jul92,kdl  added fp type test macros; deleted declarations of unused
+		 routines (isnan(), etc.); changed _d_type() to fpTypeGet();
+		 deleted prototypes for _dNormalize, _finite, _upscale.
+01d,30jul92,kdl  added DOUBLE union definition, from floatLib.c.
+01c,08jul92,smb  added to clib library.
+01b,04oct91,rrr  passed through the ansification filter
+		  -fixed #else and #endif
+		    -changed copyright notice
+01a,14sep90,mcl  adapted from Berkeley.
+*/
+
+#ifndef __INCmathPh
+#define __INCmathPh
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define ZERO 	0
+#define REAL 	1
+#define INTEGER 2
+#define INF 	3
+#define NAN 	4
+
+#define isNan(num) 	((fpTypeGet (num, 0)) == NAN)
+#define isZero(num) 	((fpTypeGet (num, 0)) == ZERO)
+#define isInf(num) 	((fpTypeGet (num, 0)) == INF)
+
+typedef union
+    {
+    unsigned p_mant[2];
+    double p_double;
+    } __cv_type;
+
+#define p_mantlow p_mant[0]
+#define p_manthigh p_mant[1]
+
+
+typedef union	/* DOUBLE */
+    {
+    double ddat;
+#if (_BYTE_ORDER == _BIG_ENDIAN)
+    struct
+        {
+        int l1;
+        int l2;
+        } ldat;
+#else
+    struct
+        {
+        int l2;
+        int l1;
+        } ldat;
+#endif /* _BYTE_ORDER == _BIG_ENDIAN */
+    } DOUBLE;
+
+/* function declarations */
+
+#if defined(__STDC__) || defined(__cplusplus)
+
+extern int fpTypeGet (double v, double *r);
+
+#else	/* __STDC__ */
+
+extern int fpTypeGet();
+
+#endif	/* __STDC__ */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCmathPh */