Hello everyone I am interested in programming some kind of C++ program in arduino. how could I do that? I can not verify c++ program since iostream was not found. Any ideas?
thank you
The Arduino uses C++
The IDE accepts and compiles C++ as long as the code makes sense to run in the Arduino hardware environment.
What exactly are you trying to do ?
" as the code makes sense to run in the Arduino hardware environment."
and quite often when it does not as well, as a lot of code is not hardware dependent.
"I can not verify c++ program since iostream was not found. Any ideas?"
Sounds like your installation is not quite correct. What PC, OS, and IDE version are you using?
xmarkx:
Hello everyone I am interested in programming some kind of C++ program in arduino. how could I do that? I can not verify c++ program since iostream was not found. Any ideas?
Don't use iostream. The Arduino doesn't have stdin and stdout (by default).
I can not verify c++ program
What program?
xmarkx:
Hello everyone I am interested in programming some kind of C++ program in arduino. how could I do that? I can not verify c++ program since iostream was not found. Any ideas?thank you
You can program in "real" C++ if you like. Simply do this:
int main (void)
{
init(); // necessary - sets up Arduino timers & such
Serial.begin (9600); // if you want serial
// all your code goes here
// program must end in an endless loop since main has nowhere to "return" to.
while (1);
}
And, if you want to use printf and stdin/stdout, use my Arduino library:
Use it like this:
#include <Stdinout.h>
int main (void)
{
init();
Serial.begin (9600);
STDIO.open (Serial); // connect serial port to standard streams
fprintf (stdout, "This is a lot easier, huh?\n");
// rest of your code goes here
while (1); // endless loop
}
Hope this helps.
You should try my library. It's nice to be able to use regular stdin/out/err rather than the stupid "Serial.print" baloney.
Quite honestly, I think this library (or at least this functionality) should be an integral part of the Arduino programming system.
Then noobs can do it the hard way and more experienced programmers aren't handicapped by the standard Arduino syntax.
The reason that the arduino environment does not have stdin, stderr, and stdout is that an arduino is not a UNIX process. Similarly, is is not passed have argc, argv, and envp values because it is not executed in the context of a UNIX shell.
PaulMurrayCbr:
The reason that the arduino environment does not have stdin, stderr, and stdout is that an arduino is not a UNIX process. Similarly, is is not passed have argc, argv, and envp values because it is not executed in the context of a UNIX shell.
Funny. I use "fprintf (stdout, .....)" and "fgetc (stdin)" all the time on my Arduino.
AVR-GCC (specifically, <stdio.h>), does indeed have stdin, stdout and stderr. It also has "fdev_open(...)" to enable using them, and I wrote a small library to enable anyone to easily use standard streams, simply by doing two things:
(1) Serial.begin (115200); // as always
(2) STDIO.open (Serial); // now std streams work
[b]fprintf (stdout, "Yes, it does indeed work\n");
[/b]
Give the library a try: GitHub - krupski/Stdinout: Standard input/output/error support for Arduino
Thank you all for your answers, I am quite experienced programmer. So I can easily write C++ but cin cout and streams dont work caz arduino is not a unix like hardware.
thank you, have a nice day
It has nothing to do with unix! It is because it is a "non-hosted" environment, there is no there there to accept OS-specific file pointers.
Many other non-unix OS' that implement C/C++ (I am looking at you, microsoft) can handle stdin, stdout and stderr just fine.
xmarkx:
Thank you all for your answers, I am quite experienced programmer. So I can easily write C++ but cin cout and streams dont work caz arduino is not a unix like hardware.thank you, have a nice day
Am I posting with invisible text?
Krupski:
Funny. I use "fprintf (stdout, .....)" and "fgetc (stdin)" all the time on my Arduino.
[/b][/tt]
Give the library a try: GitHub - krupski/Stdinout: Standard input/output/error support for Arduino
Does it implement or allow the insertion operator "<<"?
Krupski:
Am I posting with invisible text?
I saw that!
Saw what?
aarg:
Does it implement or allow the insertion operator "<<"?
No, it connects character devices to stdin/stdout/stderr.
To extend the functionality to use the insertion operator, use this: Streaming | Arduiniana
The purpose of my library is to allow Arduino users to do something like this:
** **printf ("The temperature is %d degrees C\n", temp);** **
instead of "Serial.print (this) and Serial.print (that)"