macros.h

   1 /*
   2  * Copyright (c) 2016-2019, S. Gilles <sgilles@math.umd.edu>
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software
   5  * for any purpose with or without fee is hereby granted, provided
   6  * that the above copyright notice and this permission notice appear
   7  * in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
  10  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
  11  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
  12  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
  13  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
  14  * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
  15  * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #define UNUSED(x) (void) (sizeof(x))
  19
  20 #define STR2(x) #x
  21 #define STR(x) STR2(x)
  22
  23 #define L(x) __FILE__ ":" STR(__LINE__) ": " x
  24
  25 #define MAX(x, y) (((x) > (y)) ? (x) : (y))
  26 #define SGN(x) ((x) > 0) ? 1 : ((x) < 0 ? -1 : 0)
  27 #define UBSAFES(s) ((s) ? (s) : "[None]")
  28
  29 #define IF_NZ_SET(s, v) if (s) { *(s) = (v); }