macro.h

Macros

CHDIR             X
DOTDIR            X
DOTDOTDIR         X
EQUAL             X
MAX               X
MIN               X
WHITESPACE        X

   1: /* $Header: macro.h,v 1.2 85/03/19 09:18:02 nicklin Exp $ */
   2: 
   3: /*
   4:  * General macro function definitions
   5:  *
   6:  * Author: Peter J. Nicklin
   7:  */
   8: 
   9: int strcmp();               /* string comparison */
  10: 
  11: #undef CHDIR
  12: #define CHDIR(d) \
  13:     (chdir(d) == 0)         /* change directory */
  14: 
  15: #undef DOTDIR
  16: #define DOTDIR(dp) \
  17:     (dp->d_name[0] == '.' && dp->d_name[1] == '\0')
  18:                     /* current directory? */
  19: #undef DOTDOTDIR
  20: #define DOTDOTDIR(dp) \
  21:     (dp->d_name[0] == '.' && dp->d_name[1] == '.' && dp->d_name[2] == '\0')
  22:                     /* parent directory? */
  23: #undef EQUAL
  24: #define EQUAL(s1,s2) \
  25:     (strcmp(s1,s2) == 0)        /* string comparison */
  26: 
  27: #undef MIN
  28: #define MIN(a,b) \
  29:     (((a) < (b)) ? (a) : (b))   /* minimum of two values */
  30: 
  31: #undef MAX
  32: #define MAX(a,b) \
  33:     (((a) > (b)) ? (a) : (b))   /* maximum of two values */
  34: 
  35: #undef WHITESPACE
  36: #define WHITESPACE(c) \
  37:     (c == ' ' || c == '\t')     /* unseen space in a file */