Date: Wed, 12 Nov 2008 20:50:21 +0100 From: Andreas Tobler <andreast-list@fgznet.ch> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: ppc float.h Message-ID: <491B337D.5010901@fgznet.ch>
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Hello, can somebody explain why we have these defines in sys/powerpc/include/float.h ? #define LDBL_MANT_DIG DBL_MANT_DIG #define LDBL_EPSILON DBL_EPSILON #define LDBL_DIG DBL_DIG #define LDBL_MIN_EXP DBL_MIN_EXP #define LDBL_MIN DBL_MIN #define LDBL_MIN_10_EXP DBL_MIN_10_EXP #define LDBL_MAX_EXP DBL_MAX_EXP #define LDBL_MAX DBL_MAX #define LDBL_MAX_10_EXP DBL_MAX_10_EXP I mean, why do we use the DBL_* for the LDBL instead of defining them like this: #define LDBL_MANT_DIG 64 #define LDBL_EPSILON 1.0842021724855044340E-19L #define LDBL_DIG 18 #define LDBL_MIN_EXP (-16381) #define LDBL_MIN 3.3621031431120935063E-4932L #define LDBL_MIN_10_EXP (-4931) #define LDBL_MAX_EXP 16384 #define LDBL_MAX 1.1897314953572317650E+4932L #define LDBL_MAX_10_EXP 4932 The float.h itself states that it is derived from: from: FreeBSD: src/sys/i386/include/float.h,v 1.8 1999/08/28 00:44:11 Having a look into src/sys/i386/include/float.h shows that the LDBL_* are defined as the above. Are there missing issues in libc or so? TIA, Regards, Andreas
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