CR-LIBM: a correctly rounded elementary function library

CR-LIBM: a correctly rounded elementary function library
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CR-LIBM:正确舍入的基本函数库

DOI:
10.1117/12.505591
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发表时间:
2003
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通讯作者:
J. Muller
J. Muller
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文献类型:
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作者:
Catherine Daramy;D. Defour;F. de Dinechin;J. Muller

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我们提出了一个新的基本函数库,称为 CR-LIBM。该库实现了 Ansi99 C 标准定义的各种函数。它提供正确舍入的函数:返回的结果始终是最接近精确结果的浮点数。在编写这个库时,我们的主要目标是验证正确的舍入,并使其相当快,并且内存利用率较低。因此,我们的库可以毫无问题地用于实际规模的问题。
We present a new elementary function library, called CR-LIBM. This library implements the various functions defined by the Ansi99 C standard. It provides correctly rounded functions: the returned result is always the floating-point number that is closest to the exact result. When writing this library, our primarily goal was to certify correct rounding, and make it reasonably fast, and with a low utilisation of memory. Hence, our library can be used without any problem on real-scale problems.