Given Code
This is a code with bug that you will solve
// Become familiar wih C syntax
// Learn to debug buggy code
#include <cs50.h>
int main(void)
{
// Ask for your name and where live
name = get_string("What is your name? ")
location = get_string("Where do you live? ")
// Say hello
print("Hello, %i, from %i!", name, location)
}
Bug 1
You'll see that it will give you this error when running/typing make debug
debug.c:9:5: error: use of undeclared identifier 'name'
name = get_string("What is your name? ")
^
1 error generated.
make: *** [<builtin>: debug] Error 1
to solve this we need to add what type is the name is it string? yes!!
see this
change the code like this
string name = get_string("What is your name? ");
string location = get_string("Where do you live? ");
and also always don't forget the semi colon in the last line or else you will get this error
debug.c:9:52: error: expected ';' at end of declaration
string name = get_string("What is your name? ")
^
;
1 error generated.
Bug 2
debug.c:13:5: error: implicit declaration of function 'print' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
print("Hello, %i, from %i!", name, location)
^
This codes means there's no print syntax on c language.
To solve this we need to change print to printf
and also don't forget to add #include <stdio.h> in the top above/below the #include <cs50.h> or else the printf will not work
Bug 3
Now for the last bug!!
debug.c:13:35: error: format specifies type 'int' but the argument has type 'string' (aka 'char *') [-Werror,-Wformat]
printf("Hello, %i, from %i!", name, location)
~~ ^~~~
%s
as the error say we cant put i in there because the name is a string not an number we can only add %i if the variable is a number
so to fix this change the 2 %i into %s because they are both strings and also add semi colon in the last part
like this
printf("Hello, %s, from %s!", name, location);
Solution
// Become familiar wih C syntax
// Learn to debug buggy code
#include <stdio.h>
#include <cs50.h>
int main(void)
{
// Ask for your name and where live
string name = get_string("What is your name? ");
string location = get_string("Where do you live? ");
// Say hello
printf("Hello, %s, from %s!", name, location);
}
yosh!!!
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