> You can use BoolToStr(b,'TRUE','FALSE')
That works great! Shouldn't that be the default and you can put in something else if you want it? It's Boolean To String... not Bool to some number. If I just do Writeln(True); I get the string 'TRUE' The text 'TRUE' is what you get if you convert a Boolean value of 1 to a string, not anything else. I guess the default must have been 'TRUE' or 'FALSE' at one time as that is how the documentation is written, it must have been changed to be compatible with Delphi code at some point I guess. Thanks for the suggestion, it works for my needs. James. -----Original Message----- From: fpc-pascal <fpc-pascal-boun...@lists.freepascal.org> On Behalf Of Michael Van Canneyt via fpc-pascal Sent: Sunday, August 28, 2022 11:39 AM To: ja...@productionautomation.net; FPC-Pascal users discussions <fpc-pascal@lists.freepascal.org> Cc: Michael Van Canneyt <mich...@freepascal.org>; James Richters <james.richt...@productionautomation.net> Subject: Re: [fpc-pascal] BoolToStr On Sun, 28 Aug 2022, James Richters via fpc-pascal wrote: > I'm generating a report where I wish to display some Boolean values. > I thought I would try BoolToStr, as according to: > https://www.freepascal.org/docs-html/rtl/sysutils/booltostr.html it states: > > Description > BoolToStr converts the boolean B to one of the strings 'TRUE' or 'FALSE' > > So it should do exactly what I want. output the text string 'TRUE' or > 'FALSE' depending on the Boolean state, but that is not what happens: > > Uses Sysutils; > Begin > Writeln(BooltoStr(True)); > Writeln(BooltoStr(False)); > End. > > Running "i:\booltostr.exe " > -1 > 0 > > Why true is -1 instead of 1 is beyond me, but anyway, I would consider > this BoolToInt, not BoolToStr, I want the Strings 'TRUE' or 'FALSE' > as indicated in the documentation I will adapt the documentation to be more precies. You can use BoolToStr(b,'TRUE','FALSE') or BoolToStr(b,True) in which case it will use the BoolStrs arrays to determine the strings. -1 and 0 are the Delphi values, which, I agree, are not very intuitive. > > And BoolToInt should always output 0 or 1, not matter what operating > system you are on.. I don't understand the -1. I guess some Windows > API's use -1 for true.. I still don't understand. > Maybe there should be a BoolToBit that could always be 0 or 1 > regardless of the operating system. As said, the 0 and -1 are for Delphi compatibility. Use Ord(Boolean) It will give you 0 and 1. Michael. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
