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7fd1d13152
* lib/math.in.h (sqrtl): Replace it if REPLACE_SQRTL is 1. * m4/sqrtl.m4 (gl_FUNC_SQRTL_WORKS): New macro. (gl_FUNC_SQRTL): Invoke it. Set REPLACE_SQRTL to 1 if sqrtl() produces too big rounding errors. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_SQRTL. * modules/math (Makefile.am): Substitute REPLACE_SQRTL. * modules/sqrtl (configure.ac): Consider REPLACE_SQRTL. (Depends-on): Update conditions. * tests/test-sqrtl.c (my_ldexpl): New function. (main): Add test of a particular value. * doc/posix-functions/sqrtl.texi: Mention the OpenBSD 5.1/SPARC bug.
37 lines
906 B
Plaintext
37 lines
906 B
Plaintext
Description:
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sqrtl() function: square root with long double argument.
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Files:
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lib/sqrtl.c
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m4/sqrtl.m4
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Depends-on:
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math
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extensions
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sqrt [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; }]
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float [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
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isnanl [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
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frexpl [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
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ldexpl [{ test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; } && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
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configure.ac:
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gl_FUNC_SQRTL
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if test $HAVE_SQRTL = 0 || test $REPLACE_SQRTL = 1; then
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AC_LIBOBJ([sqrtl])
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fi
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gl_MATH_MODULE_INDICATOR([sqrtl])
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Makefile.am:
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Include:
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<math.h>
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Link:
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$(SQRTL_LIBM)
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License:
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LGPL
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Maintainer:
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Paolo Bonzini
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