help comparing text values with if

[Bigbio2002]

im a n00b programer and im having some trouble comparing text strings.
printf("\n\nWhat color is the sky?\n");
scanf("%s",sky);

if(sky=="blue")
{
printf("blew");
}
else
{
printf("%s",sky);
}
no matter what i type, it always skips 2 the else statement. i think that im doing the comparison wrong. also, can i make multiple comparisons in an if statement?

if(sky=="blue", point=="up")

help would be appreciated. thanks

[Shiro]

You should use the strcmp() function to compare strings and include string.h. Note that the function strcmp() returns 0 if the strings are equal.

if (strcmp (string1, string2) == 0)
{
    // Strings are equal
}

Here's a nice reference for standard functions.

http://www.f.kth.se/~f95-pax/refs/C%20Library%20Ref/

[ammar]

Originally posted by Bigbio2002
if(sky=="blue", point=="up")

This is wrong you have to use operators like :&&, ||, etc...

[wudmx]

scanf("%s",sky);

this should be

scanf("%s", &sky);

cu
wudmx

[Polymorphic OOP]

Originally posted by wudmx
this should be

scanf("%s", &sky);

cu
wudmx

No, actually sky by itself is just fine because an array name used alone represent a pointer to its first element. Taking the address of sky only will denote it as being a pointer to an array rather than a pointer to the first element.