Invalid conversion from const

Projects Programming
1

Hello,

Probably a basic question but why have I "Invalid conversion"?

#define Sys1 "10001"
#define Sys2 "10010"

char Sys;

void loop() 
{
  Sys=Sys1; 
}

Thanks for your help

2

the char datatype is one byte....

you are trying to stuff in a string literal...

like this?

#define Sys1 B10001  // a binary number in binary syntax
#define Sys2 B10010

char Sys;

void setup()
{
  
}

void loop() 
{
  Sys=Sys1; 
}
3

Thanks but I need to pass "10001" like a char, not a like a binary value!

4

potzli:
Thanks but I need to pass "10001" like a char, not a like a binary value!

but "10001" isn't a char it is a string literal.

thus, your compiler complains when you try to assign it to a variable of type char.

5

here is an example of a char assignment:

char myChar = 'A';

here is an example of an assignment to a pointer to a char array!!!

#define Sys1 "10001"
#define Sys2 "10010"

char* Sys;

void setup()
{
  
}

void loop() 
{
  Sys=Sys1; 
}