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Diffstat (limited to 'mcon/U/d_sgndchr.U')
-rw-r--r-- | mcon/U/d_sgndchr.U | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/mcon/U/d_sgndchr.U b/mcon/U/d_sgndchr.U new file mode 100644 index 0000000..b023f5c --- /dev/null +++ b/mcon/U/d_sgndchr.U @@ -0,0 +1,50 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic License, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic License; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: d_sgndchr.U,v $ +?RCS: Revision 3.0.1.2 1997/02/28 15:44:25 ram +?RCS: patch61: added a ?F: metalint hint +?RCS: +?RCS: Revision 3.0.1.1 1995/07/25 14:00:24 ram +?RCS: patch56: made cc and ccflags optional dependencies +?RCS: +?RCS: Revision 3.0 1993/08/18 12:07:16 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:d_sgndchr: Trylink cat +?MAKE: -pick add $@ %< +?S:d_sgndchr: +?S: This variable conditionally defines the SIGNEDCHAR symbol, which +?S: indicates to the C program that signed characters are available. +?S:. +?C:SIGNEDCHAR: +?C: This symbol, if defined, indicates that characters are a signed type. +?C: If not defined, things declared as signed characters (and that make +?C: use of negative values) should probably be declared as shorts instead. +?C:. +?H:#$d_sgndchr SIGNEDCHAR /**/ +?H:. +?LINT:set d_sgndchr +: check for signed chars +$cat >try.c <<EOC +int main(void) +{ + switch (1) { + case 0: + case ((char) -1 < 0): + break; + } + return 0; +} +EOC +cyn="whether your C compiler can do signed chars" +set d_sgndchr +eval $trylink + |