source: src/examples/Tuple.c @ 7aa78b4

int f( int, int );
int g( int, int, int );
static [ int, int *, * int, int ] h( int a, int b, * int c, [] char d );

struct inner {
        int f2, f3;
};

struct outer {
        int f1;
        struct inner i;
        double f4;
} s, *sp;

const volatile [ int, int ] t1;
static const [ int, const int ] t2;
const static [ int, const int ] t3;

[ int rc ] printf( * char fmt, ... );
int printf( char *fmt, ... );

[ short x, unsigned y ] f1( int w ) {
        [ y, x ] = [ x, y ] = [ w, 23 ];
}

[ [ int, char, long, int ] r ] g1() {
        short x, p;
        unsigned int y;
        [ int, int ] z;

        [ x, y, z ] = [ p, f( 17 ), 3 ];
        [ x, y, z ] = ([short, unsigned int, [int, int]])([ p, f( 17 ), 3 ]);
        r = [ x, y, z ];
}

[ int rc ] main( int argc, ** char argv ) {
        int a, b, c, d;
        struct outer t = { .[ f1,f4 ] : [ 1,7.0 ] };
        f( [ 3,5 ] );
        g( [ 3,5 ], 3 );
        f( t1 );
        g( t1, 3 );

        [ , , , ];                                              /* empty tuple */
        [ 3, 5 ];
        [ a, b ] = 3;
        [ a, b ] = [ 4.6 ];
        [ a, b ] = [ c, d ] = [ 3, 5 ];
        [ a, b, [ c ] ] = [ 2,[ a, b ] ];
        [ a, b ] = 3 > 4 ? [ b, 6 ] : [ 7, 8 ];

        t1 = [ a, b ];
        t1 = t2 = [ a, b ];
        [ a, b ] = [ c, d ] = d += c += 1;
        [ a, b ] = [ c, d ] = t1;
        [ a, b ] = t1 = [ c, d ];
        [ a, b ] = t1 = t2 = [ c, d ];
        t1 = [ 3, 4 ] = [ 3, 4 ] = t1 = [ 3, 4 ];

        s.[ f1, i.[ f2, f3 ], f4 ] = [ 11, 12, 13, 3.14159 ];
        s.[ f1, i.[ f2, f3 ], f4 ] = h( 3, 3, 0, "abc" );
        [ a, , b, ] = h( 3, 3, 0, "abc" );                      /* ignore some results */
        sp->[ f4,f1 ] = sp->[ f1, f4 ];
        printf( "expecting 3, 17, 23, 4; got %d, %d, %d, %d\n", s.[ f4, i.[ f3, f2 ], f1 ] );
        rc = 0;
}

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