syntax error before { line 29 and syntax error before } line 45? gcc mac.

[abrown07]

#include<stdio.h>
int main(void)

{
	
	double Yeild, Heads, Seedhead, Size, unit;
		
		printf("Please enter 1 for US customary Units or 2 for metric units: ");
		scanf("%lf", &unit);
		if(unit=1) 
		{
		
		printf("Please give the number of heads per square foot: ");
		scanf("%lf", &Heads);
			
	
		printf("Please input the number of seeds per head: ");
		scanf("%lf", &Seedhead);
	
		printf("Please idicate the number of seeds per pound: ");
		scanf("%lf", &Size);
	
		Yeild= 726*Heads*(Seedhead/Size);
	
		printf("The potential grain yeild is: %.2f bushels/acre\n",Yeild);
		return 0;
		}
		else(unit=2)
       {     //*line 29
		 printf("Please give the number of heads per square meter: ");
		 scanf("%lf", &Heads);
		 
		 printf("Please input the number of seeds per head: ");
		 scanf("%lf", &Seedhead);
		 
		 printf("Please indicate the number of seeds per kilogram: ");
		 scanf("%lf", &Size);
		 
		 Yeild= 726*(Heads*10.764)*(Seedhead/(Size/2.204));
		 
		 printf("The potential grain yeild is: %.2f kg/ha\n",Yeild);
		 return 0;
	    }
		 
}     //* line 45

[weaknessforcats]

if(unit=1)

Don't you mean if (unit == 1) ?

unit=1 will always be true.

Ditto for the else.

Common confusion between the equality and assignment operator.

[abrown07]

I changed that however I am still getting the same error when i try to compile?

[Banfa]

line 28 is not C/C++ syntax, look up the syntax of if/else if/else

[nohimn]

else is not supposed to have an argument. Try else if.

[abrown07]

compiller says there is a syntax error before printf at line 30 ( indicated )??

#include<stdio. h>
int main(void)

{

double Yeild, Heads, Seedhead, Size, unit;

printf("Please enter 1 for US customary Units or 2 for metric units: ");
scanf("%lf", &unit);
if(unit==1)
{

printf("Please give the number of heads per square foot: ");
scanf("%lf", &Heads);


printf("Please input the number of seeds per head: ");
scanf("%lf", &Seedhead);

printf("Please idicate the number of seeds per pound: ");
scanf("%lf", &Size);

Yeild= 726*Heads*(Seed head/Size);

printf("The potential grain yeild is: %.2f bushels/acre\n",Yeild);

}
else(unit==2)
/* (ln30)*/ printf("Please give the number of heads per square meter: ");
scanf("%lf", &Heads);

printf("Please input the number of seeds per head: ");
scanf("%lf", &Seedhead);

printf("Please indicate the number of seeds per kilogram: ");
scanf("%lf", &Size);

Yeild= 726*(Heads*10.7 64)*(Seedhead/(Size/2.204));

printf("The potential grain yeild is: %.2f kg/ha\n",Yeild);
return 0;


}

[abrown07]

okay that helps thanks alot! Im new to this whole thing and its makin my head spin.

[donbock]

Edit: I just noticed that you have the same question in another thread; and that this answer was provided by somebody else in that thread. I just wasted my time answering this thread! Please don't double-post your questions.
=============== =======

Please use CODE tags -- they make it much easier for us to help you with your source code.

if (unit == 1)
{
...
}
else (unit == 2)
...

You want "else if (unit == 2)" and you want curly braces around the else-if clause. Better than that, you probably really want

switch (unit)
{
   case 1:
      ...
   break;
   case 2:
      ...
   break;
   default:
      ...
}

[Banfa]

Threads merged