is it wrong way of coding ?

Using Arduino Programming Questions
1

what is the issue of this code ?
could you can help me where was wrong.

#include<stdio.h>
char solve(const char* InputString)
{
int i=0;
while(*InputString)
{
printf("%c",InputString);
InputString++;
}

}
int main()
{
solve("test string");

}

2

Can you describe exactly what it does? What is the expected output?

3

passing a string print character by character

4

You want to print a character, but you are passing a character pointer. You want

printf("%c",*InputString);
5

Adding compiler warnings to your preference settings should also help identify problems (assuming you are using the Arduino IDE).
Using main() directly is not usual in Arduino programming.

6

The problem is it is not in code tags! Check the forum guidelines about how to post then you can update your post to include code tags and post a new reply with the standard required information.

7

what is the issue of this code ?
could you can help me where was wrong.

Is this an Arduino question ?
If so, which board are you using ?

8