source: src/tests/forall.c @ 000178a

int ?=?( int*, int );
float ?=?( float*, float );
int * ?=?( int **, int * );
float * ?=?( float **, float * );
char ?=?( char*, char );
void (* ?=?( void (**)(void), void (*)(void) ))(void);

void g1() {
        forall( otype T ) T f( T );
        void f( int );
        void h( void (*p)(void) );

        int x;
        void (*y)(void);
        char z;
        float w;

        f( x );
        f( y );
        f( z );
        f( w );
        h( f( y ) );
}

void g2() {
        forall( otype T ) void f( T, T );
        forall( otype T, otype U ) void f( T, U );

        int x;
        float y;
        int *z;
        float *w;

        f( x, y );
        f( z, w );
        f( x, z );
}

typedef forall ( otype T ) int (*f)( int );

forall( otype T )
void swap( T left, T right ) {
        T temp = left;
        left = right;
        right = temp;
}

trait sumable( otype T ) {
        const T 0;
        T ?+?(T, T);
        T ?++(T);
        [T] ?+=?(T,T);
};

otype T1 | { const T1 0; T1 ?+?(T1, T1); T1 ?++(T1); [T1] ?+=?(T1,T1); },
        T2(otype P1, otype P2 ),
        T3 | sumable(T3);

otype T2(otype P1, otype P2) | sumable(T2(P1,P2)) = struct { P1 i; P2 j; };

T2(int, int) w1;
typedef T2(int, int) w2;
w2 g2;
otype w3 = T2(int, int);
w3 g3;

forall( otype T | sumable( T ) )
T sum( int n, T a[] ) {
        T total = 0;
        int i;
        for ( i = 0; i < n; i += 1 )
                total = total + a[i];
        return total;
}

forall( otype T | { const T 0; T ?+?(T, T); T ?++(T); [T] ?+=?(T,T); } )
T twice( T t ) {
        return t + t;
}

forall( otype T | { const T 0; int ?!=?(T, T); int ?<?(T, T); } )
T min( T t1, T t2 ) {
        return t1 < t2 ? t1 : t2;
}

int main() {
        int x = 1, y = 2, a[10];
        float f;

        swap( x, y );
        twice( x );
        f = min( 4.0, 3.0 );
        sum( 10, a );
}

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