Question

Syntax error in C. I am not familiar with C at all and I keep getting this one error "c error expected identifier or '(' before } token" Please show me where I made the error. The error is said to be on the very last line, so the very last bracket

#include

#include

#include

#include  

int main(int argc, char*_argv[])

{

    int input;

    if (argc < 2)

    {

        input = promptUserInput();

    }

    else

    {

        input = (int)strtol(_argv[1],NULL, 10);

    }

    printResult(input);

    return 0;

    }

    int promptUserInput()

    {   int result;

        printf("\nEnter a decimal number to convert: ");

        scanf("%d\n", &result); // %d refers to an integer

        return result;

    }

   char* decimalToOctal();

   char* decimalToHex();

   

void printResult(int input)

{

    char *octal; //referaece in the heap

    char *hex; // reference in the heap

//   char *binary // ref in the heap

    octal = decimalToOctal(input);

    hex = decimalToHex(input);

  //  binary = decimalToBinary(input);

    printf("The decimal %d in octal is: %s \n", input, octal);

    printf("The decimal %d in hex is: %s \n", input, hex);

  //  printf("The decimal %d in binary is: %s \n", input, binary);

    free(octal); //free delocates the memory

    free(hex);

     //  free(binary);

}

char* decimalToOctal(int input)     

{

    char* result;

    result = (char*)malloc(sizeof(char)*(int)(log10(input)/log10(8)+1));

    sprintf(result, "%o", input);

    return result;

}

char* decimalToHex(int input)

{

    char* result;

    result = (char*)malloc(sizeof(char)*(int)(log10(input)/log10(16)+1));

    sprintf(result, "%x", input);

    return result;

}

}

Answer 1

Answer:

#include <stdio.h>

int main(int argc, char*_argv[])

{

    int input;

    if (argc < 2)

    {

        input = promptUserInput();

    }

    else

    {

        input = (int)strtol(_argv[1],NULL, 10);

    }

    printResult(input);

    return 0;

}

int promptUserInput()
{   
        int result;

        printf("\nEnter a decimal number to convert: ");

        scanf("%d\n", &result); // %d refers to an integer

        return result;

}

char* decimalToOctal();

char* decimalToHex();


void printResult(int input)

{

    char *octal; //referaece in the heap

    char *hex; // reference in the heap

//   char *binary // ref in the heap

    octal = decimalToOctal(input);

    hex = decimalToHex(input);

  //  binary = decimalToBinary(input);

    printf("The decimal %d in octal is: %s \n", input, octal);

    printf("The decimal %d in hex is: %s \n", input, hex);

  //  printf("The decimal %d in binary is: %s \n", input, binary);

    free(octal); //free delocates the memory

    free(hex);

     //  free(binary);

}

char* decimalToOctal(int input)     

{

    char* result;

    result = (char*)malloc(sizeof(char)*(int)(log10(input)/log10(8)+1));

    sprintf(result, "%o", input);

    return result;

}

char* decimalToHex(int input)

{

    char* result;

    result = (char*)malloc(sizeof(char)*(int)(log10(input)/log10(16)+1));

    sprintf(result, "%x", input);

    return result;

}

Note: Please check the updated code. You just have to remove the '}' in the last line.