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comparison lib/regex.c @ 17:bfdc4be2e482

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GNU text utilities
author Jim Meyering <jim@meyering.net>
date Thu, 19 Nov 1992 20:51:13 +0000
parents 4b22f864dc31
children ae9487125494
comparison
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12:f4f95ae402d1 17:bfdc4be2e482
133 since ours (we hope) works properly with all combinations of 133 since ours (we hope) works properly with all combinations of
134 machines, compilers, `char' and `unsigned char' argument types. 134 machines, compilers, `char' and `unsigned char' argument types.
135 (Per Bothner suggested the basic approach.) */ 135 (Per Bothner suggested the basic approach.) */
136 #undef SIGN_EXTEND_CHAR 136 #undef SIGN_EXTEND_CHAR
137 #if __STDC__ 137 #if __STDC__
138 #ifndef VMS
138 #define SIGN_EXTEND_CHAR(c) ((signed char) (c)) 139 #define SIGN_EXTEND_CHAR(c) ((signed char) (c))
140 #else /* On VMS, VAXC doesn't recognize `signed' before `char' */
141 #define SIGN_EXTEND_CHAR(c) ((char) (c))
142 #endif /* VMS */
139 #else 143 #else
140 /* As in Harbison and Steele. */ 144 /* As in Harbison and Steele. */
141 #define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128) 145 #define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
142 #endif 146 #endif
143 147