*testing conversions from array of char to short strings

tests/test/testchar.pp

@@ -0,0 +1,77 @@
+
+type
+   CharA4 = array [1..4] of char;
+   CharA6 = array [1..6] of char;
+   String4 = String[4];
+   String5 = String[5];
+   String6 = String[6];
+   String8 = String[8];
+
+const
+   car4_1 : CharA4 = 'ABCD';
+   car4_2 : CharA4 = 'abcd';
+   car6_1 : CharA6 = 'EFGHIJ';
+   car6_2 : CharA6 = 'efghij';
+   cst4_1 : String4 = 'ABCD';
+   cst6_2 : string6 = 'EFGHIJ';
+   cst8_1 : string8 = 'abcd';
+   cst8_2 : string8 = 'efghij';
+
+var
+  ar4_1, ar4_2 : CharA4;
+  ar6_1, ar6_2 : CharA6;
+  st4_1, st4_2 : string4;
+  st5_1, st5_2 : string5;
+  st6_1, st6_2 : string6;
+  st8_1, st8_2 : string8;
+
+const
+  has_errors : boolean = false;
+
+  procedure error(const st : string);
+    begin
+      Writeln('Error: ',st);
+      has_errors:=true;
+    end;
+begin
+  { compare array of char to constant strings }
+  Writeln('Testing if "',car4_1,'" is equal to "',cst4_1,'"');
+  if car4_1<>cst4_1 then
+    error('Comparison of array of char and string don''t work');
+  Writeln('Testing if "',car4_1,'" is equal to "ABCD"');
+  if car4_1<>'ABCD' then
+    error('Comparison of array of char and constat string don''t work');
+  Writeln('Testing if "',cst4_1,'" is equal to "ABCD"');
+  if 'ABCD'<>cst4_1 then
+    error('Comparison of string and constant string don''t work');
+  car4_1:='AB'#0'D';
+  if car4_1='AB' then
+    Writeln('Anything beyond a #0 is ignored')
+  else if car4_1='AB'#0'D' then
+    Writeln('Chars after #0 are not ignored')
+  else
+    Error('problems if #0 in array of char');
+{$ifdef FPC this is not allowed in BP !}
+  car4_1:=cst4_1;
+{ if it is allowed then it must also work correctly !! }
+  Writeln('Testing if "',car4_1,'" is equal to "',cst4_1,'"');
+  if car4_1<>cst4_1 then
+    error('Comparison of array of char and string don''t work');
+  if string4(car6_2)<>'efgh' then
+    error('typcasting to shorter strings leads to problems');
+{$endif}
+  cst8_1:=car4_1;
+{ if it is allowed then it must also work correctly !! }
+  Writeln('Testing if "',car4_1,'" is equal to "',cst8_1,'"');
+  if car4_1<>cst8_1 then
+    error('Comparison of array of char and string don''t work');
+  st4_2:='Test';
+  st4_1:=car6_1;
+  if (st4_2<>'Test') or (st4_1<>'EFGH') then
+    error('problems when copying long char array to shorter string');
+  if has_errors then
+    begin
+      Writeln('There are still problems with arrays of char');
+      Halt(1);
+    end;
+end.