- fabsl.c should be named s_fabsl.c for consistency with libmsun's
documented naming scheme (unfortunately the documentation isn't in the tree as far as I can tell); no repocopy is required as there is no history to preserve. - replace simple and almost-correct implementation with slightly hackish but definitely correct implementation (tested on i386, alpha, sparc64) which requires pulling in fpmath.h and the MD _fpmath.h from libc. - try not to make a mess of the Makefile in the process. - enterprising minds are encouraged to implement more C99 long double functions.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=121497
@ -97,11 +97,16 @@ COMMON_SRCS= b_exp.c b_log.c b_tgamma.c \
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w_sinh.c w_sinhf.c w_sqrt.c w_sqrtf.c \
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w_y0.c w_y0f.c w_y1.c w_y1f.c w_yn.c w_ynf.c
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# Location of fpmath.h and _fpmath.h
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LIBCDIR= ${.CURDIR}/../libc
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CFLAGS+= -I${LIBCDIR}/include -I${LIBCDIR}/${MACHINE_ARCH}
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# C99 long double functions
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COMMON_SRCS+= s_fabsl.c
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# FreeBSD's C library supplies these functions:
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#COMMON_SRCS+= s_fabs.c s_frexp.c s_isnan.c s_ldexp.c s_modf.c
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COMMON_SRCS+= fabsl.c
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# Exclude the generic versions of what we provide in the MD area.
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.if defined(ARCH_SRCS)
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.PATH: ${.CURDIR}/${ARCH}
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@ -30,8 +30,11 @@
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#include <math.h>
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#include "fpmath.h"
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long double
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fabsl(long double x)
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{
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return (x < 0) ? -x : x;
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((union IEEEl2bits *)&x)->bits.sign = 0;
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return (x);
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}
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