I'm trying to change the character string to upper case or lower case. I find it strange that Palm OS API has a StrToLower function but no StrToUpper function but StrToLower Palm OS API does work but I need to convert to lower and upper and so I resort to tolower and toupper as portable solutions.
First I tried to do it the std C++ way with std::transform(s.begin(), s.end(), s.begin, ::toupper);
and this compiled and linked but its execution erased my string - obliterated it, so then I tried
// Explicit cast forces the compiler to choose the function def over the macro
std::transform(s.begin(), s.end(), s.begin, (int(*)(int))toupper);
This gave a compiler error and I had to abandon it. If toupper is a macro then no forcing it will work.
Finally I resorted the std hack:
strupr((char*)s.c_str()); -- this wouldn't compile, strupr wasn't found even though I had string.h included.
Finally I then I just wrote my own function
s[i] = toupper(s[i])
and s[i] which had the character string "abc"
but got a 0 result.
0 <= s[i] = toupper(s[i]) even though s[i] was = to 'A'
toupper was not working. I was thinking this had to something to do w/ the locale.
All I can conclude is that toupper and tolower do not work with the Palm OS Metrowerks compiler.
Finally I put at the top of the .cpp file, since the IDE doesn't let one define a -D_MSL_USE_INLINE anywhere which a typical compiler - GUI or cmd line usually does...
#define _MSL_USE_INLINE 1
and now FINALLY toupper works...
What is going wrong?
I isolated the code to the file <cctype> and I'm using the latest 9.3.
Is there a configuration for this compiler that lets me write std C++ code or at least close to it.
Is there a way to use -D_MSL_USE_INLINE or do I need to use the cmd line compiler for that. Is it even advisable to use this macro - if I don't it - it compiles and links but tolower and toupper always return 0.
I'm porting an existing app that is fairly small and I don't want to have to write all the std C and C++ functions just for the Palm OS and do all these mental gymnastics.