A Crash Course in C

Storage Class and Scope Bad Example

main()
{
    int x;
    int x;     /*  Cannot define x twice */
}   

/* These two objects are in the same struct type Lexical Scope. */
struct foo {
};

union foo {		
};

/* These two objects are in the same Global Object Lexical Scope */
static int baz;	
int baz;

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Storage Class and Scope Bad Example main() { int x; int x; /* Cannot define x twice */ } /* These two objects are in the same struct type Lexical Scope. */ struct foo { }; union foo { }; /* These two objects are in the same Global Object Lexical Scope */ static int baz; int baz;

Storage Class and Scope Bad Example
main() { int x; int x; /* Cannot define x twice / } / These two objects are in the same struct type Lexical Scope. / struct foo { }; union foo { }; / These two objects are in the same Global Object Lexical Scope */ static int baz; int baz;