95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/*-
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* This code is derived from software copyrighted by the Free Software
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* Foundation.
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*
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* Modified 1991 by Donn Seeley at UUNET Technologies, Inc.
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*
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* @(#)lib.h 6.4 (Berkeley) 5/8/91
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*/
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/* Copyright (C) 1989, 1990 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.uucp)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 1, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file LICENSE. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* This file is included in both C and C++ compilations. */
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#ifdef __cplusplus
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extern "C" {
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// const char *strerror(int);
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// const char *itoa(int);
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// const char *iftoa(int, int);
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};
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const char *itoa(int);
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const char *iftoa(int, int);
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char *strsave(const char *s);
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int interpret_lf_args(const char *p);
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inline int illegal_input_char(int c)
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{
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return c == 000 || (c > 012 && c < 040) || (c >= 0200 && c < 0240);
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}
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#endif
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#ifndef INT_MAX
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#define INT_MAX 2147483647
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#endif
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/* It's not safe to rely on people getting INT_MIN right (ie signed). */
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#ifdef INT_MIN
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#undef INT_MIN
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#endif
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#ifdef CFRONT_ANSI_BUG
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/* This works around a bug in cfront 2.0 used with ANSI C compilers. */
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#define INT_MIN ((long)(-INT_MAX-1))
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#else /* CFRONT_ANSI_BUG */
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#define INT_MIN (-INT_MAX-1)
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#endif /* CFRONT_ANSI_BUG */
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/* Maximum number of digits in the decimal representation of an int
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(not including the -). */
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#define INT_DIGITS 10
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/* From the old GNU math.h; does some standard actually require these? */
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#define M_E 2.7182818284590452354
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#define M_LOG2E 1.4426950408889634074
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#define M_LOG10E 0.43429448190325182765
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#define M_LN2 0.69314718055994530942
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#define M_LN10 2.30258509299404568402
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#define M_PI 3.14159265358979323846
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#define M_PI_2 1.57079632679489661923
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#define M_1_PI 0.31830988618379067154
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#define M_PI_4 0.78539816339744830962
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#define M_2_PI 0.63661977236758134308
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#define M_2_SQRTPI 1.12837916709551257390
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#define M_SQRT2 1.41421356237309504880
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#define M_SQRT1_2 0.70710678118654752440
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#define PI M_PI
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#define PI2 M_PI_2
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