Using strings in if statements

[Brittany]

I'm learning C in my spare time so there are always little pieces of information I'm missing. For a simple program I wrote, I want it to say for the first if statement, if the age you entered was 18 and you are a girl then do "this".

I first had something like
if ((arg1 == 18) && (sex1 = girl))

but that doesn't work... i initialized all my variables and stuff, i just have the syntax wrong. can someone please give me an answer
Thanks

[quzah]

Well for starters, you're using the assignemnt operator in your second test. But we'll assume that's a typo.

Next, were it actually correct to do so, it would be:

if( (arg1 == 18) && (sex1 == "girl") )

Since I'm assuming that because your topic stated you were using strings, that "girl" was supposed to be a string...

But since you can't do that, you use the built in string comparison function:

if( thisint == 18 && strcmp( thisstring, "girl" ) == 0 )
    ...do something...

Quzah.

[Brittany]

Thanks dude! that makes much more sense. and hehe, yes that was a typo, meant to have double quotes around girl and ==, i couldnt figure out how to use the tags for the code so just quick typed something in to test.

[quzah]

Oh, yeah, I forgot to tell you, strcmp returns zero on success.

Quzah.

[Brittany]

when my if statement is true it skips straight to the else statement... anyone know what im doing wrong?

#include <stdio.h>

int main()
{
int arg1;
char sex1[5];

	printf("Enter your age and sex please.\n\r", arg1, sex1);
	scanf("%d %s", &arg1, &sex1);


if( arg1 == 18 && strcmp( sex1, "girl" ) )
{
	printf("Whoohoo, you're legal, %s!\n\r", &sex1);
}
else
	printf("Aww, how boring, you're a minor.\n\r");
	return 0;
}

thanks.

[Brittany]

haaha, that answers it