third-party-mirror / GRTEv4 / 262be5abc585813b1766119db73641d44ba3741e / . / google3 / third_party / grte / v4_src / glibc-2.19 / math / e_exp10.c

/* Copyright (C) 1998-2014 Free Software Foundation, Inc. | |

This file is part of the GNU C Library. | |

Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. | |

The GNU C Library is free software; you can redistribute it and/or | |

modify it under the terms of the GNU Lesser General Public | |

License as published by the Free Software Foundation; either | |

version 2.1 of the License, or (at your option) any later version. | |

The GNU C Library is distributed in the hope that it will be useful, | |

but WITHOUT ANY WARRANTY; without even the implied warranty of | |

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |

Lesser General Public License for more details. | |

You should have received a copy of the GNU Lesser General Public | |

License along with the GNU C Library; if not, see | |

<http://www.gnu.org/licenses/>. */ | |

#include <math.h> | |

#include <math_private.h> | |

#include <float.h> | |

double | |

__ieee754_exp10 (double arg) | |

{ | |

if (__finite (arg) && arg < DBL_MIN_10_EXP - DBL_DIG - 10) | |

return DBL_MIN * DBL_MIN; | |

else | |

/* This is a very stupid and inprecise implementation. It'll get | |

replaced sometime (soon?). */ | |

return __ieee754_exp (M_LN10 * arg); | |

} | |

strong_alias (__ieee754_exp10, __exp10_finite) |