why

[robust topaz]

why does this work with out errors

include "stdio"

main()
{
int charin;
while ( (charin = getchar())!=32)
putchar(charin);
}
but when i add it to the program i get an identifier expected in a type declaration

#include "stdio"

void drawLine()
{
int y;
int x;
y=30;
gotoxy(1,1);
for (x = 0; x < 180; x++){

printf("the value of x is %d                    ",x);
    }

}
int main()
{
int charin;
clearscr();

gotoxy(10,5);
printf("Hello World from Vintage is The New Old!\n");

drawLine();

gotoxy(35,15);
printf("Press <ENTER> to finish...");

while ( (charin = getchar()) !=32)
putchar(charin);

return 0;

[silver tundra]

When your question is answered use !solved to mark the question as resolved.

Remember to ask specific questions, provide necessary details, and reduce your question to its simplest form. For tips on how to ask a good question use !howto ask.

[sharp harness]

!f

[silver tundra]

why does this work with out errors

include "stdio"

main() {
  int charin;
  while ((charin = getchar()) != 32)
    putchar(charin);
}
but when i add it to the program i get an identifier expected in a type
    declaration
#include "stdio"

    void
    drawLine() {
  int y;
  int x;
  y = 30;
  gotoxy(1, 1);
  for (x = 0; x < 180; x++) {
    printf("the value of x is %d                    ", x);
  }
}
int main() {
  int charin;
  clearscr();

  gotoxy(10, 5);
  printf("Hello World from Vintage is The New Old!\n");

  drawLine();

  gotoxy(35, 15);
  printf("Press <ENTER> to finish...");

  while ((charin = getchar()) != 32)
    putchar(charin);

  return 0;

RossWeikle

Formatted by Ep§ilon

[sharp harness]

What errors should it give?

[robust topaz]

i am sorry the first section works without errors

but the second gives the error identifer expected in a type declaration

main() {
int charin;
while ((charin = getchar()) != 32)
putchar(charin);
}

no error works as expected

main() {
int charin;
while ((charin = getchar()) != 32)
putchar(charin);
}
but when i add it to the program i get an identifier expected in a type
declaration
#include "stdio"

void
drawLine() {

int y;
int x;
y = 30;
gotoxy(1, 1);
for (x = 0; x < 180; x++) {
printf("the value of x is %d ", x);
}
}
int main() {
int charin;
clearscr();

gotoxy(10, 5);
printf("Hello World from Vintage is The New Old!\n");

drawLine();

gotoxy(35, 15);
printf("Press <ENTER> to finish...");

while ((charin = getchar()) != 32)
putchar(charin);

return 0;

}

does not and gives the error

[sharp harness]

Can you show the full error list

[robust topaz]

1 ERRORS DETECTED

2 Identifier expected in a type declaration

[sharp harness]

;compile -std=c89

#include <stdio.h>
/*main() {
  int charin;
  while ((charin = getchar()) != 32)
    putchar(charin);
}*/

void
    drawLine() {
  int y;
  int x;
  y = 30;
  gotoxy(1, 1);
  for (x = 0; x < 180; x++) {
    printf("the value of x is %d                    ", x);
  }
}
int main() {
  int charin;
  clearscr();

  gotoxy(10, 5);
  printf("Hello World from Vintage is The New Old!\n");

  drawLine();

  gotoxy(35, 15);
  printf("Press <ENTER> to finish...");

  while ((charin = getchar()) != 32)
    putchar(charin);

}```

[quartz sapphire]

Compiler Output

/opt/compiler-explorer/gcc-15.1.0/bin/../lib/gcc/x86_64-linux-gnu/15.1.0/../../../../x86_64-linux-gnu/bin/ld: /tmp/ccHRccN4.o: in function ​`drawLine':
<source>:13:(.text+0x1f): undefined reference to ​`gotoxy'
/opt/compiler-explorer/gcc-15.1.0/bin/../lib/gcc/x86_64-linux-gnu/15.1.0/../../../../x86_64-linux-gnu/bin/ld: /tmp/ccHRccN4.o: in function ​`main':
<source>:20:(.text+0x5f): undefined reference to ​`clearscr'
/opt/compiler-explorer/gcc-15.1.0/bin/../lib/gcc/x86_64-linux-gnu/15.1.0/../../../../x86_64-linux-gnu/bin/ld: <source>:22:(.text+0x73): undefined reference to ​`gotoxy'
/opt/compiler-explorer/gcc-15.1.0/bin/../lib/gcc/x86_64-linux-gnu/15.1.0/../../../../x86_64-linux-gnu/bin/ld: <source>:27:(.text+0x9b): undefined reference to ​`gotoxy'
collect2: error: ld returned 1 exit status
Build failed

saqib.com | c | x86-64 gcc 15.1 | godbolt.org

[robust topaz]

TRS80 C VERSION: 02.01.00 09:49:42 07/14/25 PAGE 1
|----------------------------------------------------------------------|
1|#include "stdio"
2|/*************** Alcor C Standard I/O Header /
3|
4|#define MAXFILES 20
5|#define EOF -1
6|#define NULL 0
7|#define stdin _iob[0]
8|#define stdout _iob[1]
9|#define stderr _iob[2]
10|#define getchar() getc(stdin)
11|#define putchar(c) putc(c,stdout)
12|
13|typedef struct {
14| char file[32]; / file descriptor /
15| int fd; / file descriptor number /
16|} FILE;
17|
18|extern FILE _iob[MAXFILES];
19|
20|typedef struct {
21| int length;
22| char string[80];
23|} STRING;
24|
25|/*******************************************/
26|
27|void drawLine()
28|{
29|int y;
30|int x;
31|y=30;
32|gotoxy(1,1);
33|for (x = 0; x < 180; x++){
34|
35| printf("the value of x is %d ",x);
36| }
37|}
38|int main()
39|{
40| int charin;
41| clearscr();
42|
43| gotoxy(10,5);
44| printf("Hello World from Vintage is The New Old!\n");
45|
46| drawLine();
47|
48|
49| gotoxy(35,15);
50| printf("Press <ENTER> to finish...");
51|
52| while ( (charin = getchar()) !=32)
53| putchar(charin);
54|
55| return 0;
56|
57|
***** ^ 2

TRS80 C VERSION: 02.01.00 09:49:42 07/14/25 PAGE 2
|----------------------------------------------------------------------|

     1 ERRORS DETECTED

2 Identifier expected in a type declaration

if i remove the int charin; line and the while line i get no error.

[ebon palm]

!code

[silver tundra]

How to Format Code on Discord

Markup

```c
int main() {}
```

Result

int main() {}

Note: Back-tick (`) not quotes (')

[ebon palm]

Show a screenshot of the error

[ebon palm]

Ah, the ***** ^ 2 thing is pointing at the error isn't it?

Looks like you just forgot the } at the end

But also what the hell is this stone age compiler?

https://en.wikipedia.org/wiki/TRS-80

Please shame your teaches into using something more modern

[robust topaz]

i am playing around with a retro pc. i want to make an program to interface a piec of hardware and i want to learn C programming i am 62 years old and the teachers had nothing to do with it

[ebon palm]

Ah, sorry for the assumption then 🙂

[robust topaz]

dang i thought i had checked on the final } but i must have deleted it in my ancient editor

[hollow vale]

Is this how experts here teach? Wtf haha

[robust topaz]

no problem on the assumption. i know i am going at the is a backwards way

[hollow vale]

Didnt know all I had to get was shamed on my skill and knowledge, and Ill just do better. Hell yeah! 😒

[hollow vale]

Youre doing nothing backwards. Keep it up Ross, you're doing great.

[robust topaz]

i took some classes years ago on c but have always been a basic programmer and using a 1979 complier and editor (k and r c btw) so i know that there will be some problems that will be difficult to resolve, but a dang } should not have been one of them

[ebon palm]

I see a lot of people who are forced to use outdated tech in their universities/etc, and they absolutely should complain to their teachers about that

I don't think I've said anything out of line?

Of course, nothing wrong with using it yourself intentionally

[robust topaz]

i took no offense i i also understand about outdate tech. espcially with open source stuff available to use.

there is like maybe 3 native compilers for the trs80 model 4. this one is just the first i was able to get working but i will try the others plus there are cross compilers for the PC (linux and windows) that i will have to work with later

i also understand i will have to make adjustments to use this knowledge in the pc world