Update comment about xchar

diff --git a/include/global.h b/include/global.h
index 23350a12c3d3c3fdf83586b96a899be9696fe24c..1cdc6a1683a0296bd4aec654d098fb6cbf080dbd 100644 (file)
--- a/include/global.h
+++ b/include/global.h
@@ -49,9 +49,8 @@
 #endif /* DUMB */
 
 /*
- * type xchar: small integers in the range 0 - 127, usually coordinates
- * although they are nonnegative they must not be declared unsigned
- * since otherwise comparisons with signed quantities are done incorrectly
+ * type xchar: small integers (typedef'd as signed char,
+ * so in the range -127 - 127), usually coordinates.
  */
 typedef schar xchar;