syntax error near unexpected token `(' when running program in cygwin

Question

having an issue while running my code on cygwin only getting one error which is at line 11. please spare me as i am a beginner. Trying to solve it from 8 hours straight but no luck edited the error to match the source code tried add an int between typedef int (*fun_ptr)... still same erroe

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define RED "\033[0;31m"
#define GREEN "\033[0;32m"
#define BLUE "\033[1;34m"
#define RESET "\033[0m"

typedef (*fun_ptr)(int**, int, int, char**, int, int);

void printBoard(int **board, int b_height, int b_width)
{
    int i, j;
    char ch;
    printf(":) ||");
    for (j = 0; j < b_width; j++)
    {
        printf(" %c |", 'A' + j);
    }
    printf("\n---++");
    for (j = 0; j < b_width; j++)
    {
        printf("===+");
    }
    for (i = 0; i < b_height; i++)
    {
        printf("\n %d ||", i + 1);
        for (j = 0; j < b_width; j++)
        {
            if (board[i][j] == -1)
            {
                ch = 'X';
                printf(" %s%c%s |", RED, ch, RESET);
                //printf(" X |");
            }
            else if (board[i][j] == -2) {
                ch = '0';
                printf(" %s%c%s |", GREEN, ch, RESET);
                //printf(" 0 |");
            }
            else {
                ch = '#';
                printf(" %s%c%s |", BLUE, ch, RESET);
                //printf(" # |");
            }
        }
        printf("\n---++");
        for (j = 0; j < b_width; j++)
        {
            printf("---+");
        }
    }
    printf("\n");
}

error that i am getting

./source.c: line 11: syntax error near unexpected token `('
./source.c: line 11: `typedef (*fun_ptr) (int**, int, int, char**, int, int);'

The line in the code doesn't look like the line in the error message. — Barmar
– Barmar, Commented Jul 18, 2020 at 0:17
So I don't think you posted the same source file that got the error. — Barmar
– Barmar, Commented Jul 18, 2020 at 0:18
Please edit the question, make the title, code, and error message match. — Barmar
– Barmar, Commented Jul 18, 2020 at 0:23
When I compile the code in your question with gcc on Cygwin, I get warning: type defaults to ‘int’ in declaration of ‘fun_ptr’ [-Wimplicit-int], not a syntax error. When I add int after typedef, it compiles without error. If you're getting a syntax error after adding int, the problem is in code you haven't shown us. This is why we need a minimal reproducible example (read that link). — Keith Thompson
– Keith Thompson, Commented Jul 18, 2020 at 1:27

Keith Thompson · Accepted Answer · 2020-07-18 00:23:09Z

1

typedef (*fun_ptr)(int**, int, int, char**, int, int);

That's almost how you'd define a name fun_ptr for a pointer-to-function type. The only thing missing is the return type of the function. For example, if it returns int:

typedef int (*fun_ptr)(int**, int, int, char**, int, int);

(It looks like your code is incomplete, since you don't have any functions of that type, nor do you use fun_ptr. I presume you're just not finished.)

edited Jul 18, 2020 at 0:23

answered Jul 18, 2020 at 0:19

Keith Thompson

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5 Comments

Awais Akbar Over a year ago

not really now it gives is this error ./source.c: line 11: syntax error near unexpected token (' ./source.c: line 11: typedef int (fun_ptr) (int*, int, int, char**, int, int);'

user4581301 Over a year ago

That I cannot reproduce. The only error I get when compiling your code and adding the missing return type is a linker error because there is no main. If you did not type this in yourself, make sure you didn't copy an invisible character or unicode character that looks like a ( but isn't.

Keith Thompson Over a year ago

@AwaisAkbar typedef int (fun_ptr) (int*, int, int, char**, int, int); is a syntactically valid declaration. If you're getting a syntax error, it's because of a problem on a previous line -- code that you didn't show us. This kind of thing is why we need a minimal reproducible example.

Roberto Caboni Over a year ago

@awaisakbar you are missing a * before fun_ptr: try with (*fun_ptr).

user4581301 Over a year ago

@RobertoCaboni note how the text suddenly turns italics. That's the missing *.

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