handy.h: Change the error return of two macros

These two undocumented macros returned the REPLACEMENT CHARACTER if the
input was outside the Latin1 range.  This was contrary to all other
similar macros, which return their input if it is invalid.  It caused
warnings in some (dumber than average) compilers.

These macros are undocumented; this changes the behavior only of illegal
inputs to them.

diff --git a/handy.h b/handy.h
index d12f572..1015479 100644 (file)
--- a/handy.h
+++ b/handy.h
@@ -1168,19 +1168,19 @@ EXTCONST U32 PL_charclass[];
 
 /* Use table lookup for speed; return error character for input
  * out-of-range */
-#define toLOWER_LATIN1(c)    (FITS_IN_8_BITS(c)                            \
-                             ? UNI_TO_NATIVE(PL_latin1_lc[                 \
-                                               NATIVE_TO_UNI( (U8) (c)) ]) \
-                             : UNICODE_REPLACEMENT)
+#define toLOWER_LATIN1(c)    ((! FITS_IN_8_BITS(c))                        \
+                             ? (c)                                           \
+                             : UNI_TO_NATIVE(PL_latin1_lc[                 \
+                                               NATIVE_TO_UNI( (U8) (c)) ]))
 #define toLOWER_L1(c)    toLOWER_LATIN1(c)  /* Synonym for consistency */
 
 /* Modified uc.  Is correct uc except for three non-ascii chars which are
  * all mapped to one of them, and these need special handling; error
  * character for input out-of-range */
-#define toUPPER_LATIN1_MOD(c) (FITS_IN_8_BITS(c)                           \
-                              ? UNI_TO_NATIVE(PL_mod_latin1_uc[            \
-                                               NATIVE_TO_UNI( (U8) (c)) ]) \
-                              : UNICODE_REPLACEMENT)
+#define toUPPER_LATIN1_MOD(c) ((! FITS_IN_8_BITS(c))                       \
+                               ? (c)                                         \
+                               : UNI_TO_NATIVE(PL_mod_latin1_uc[           \
+                                               NATIVE_TO_UNI( (U8) (c)) ]))
 
 #ifdef USE_NEXT_CTYPE