source: tests/sum.cfa@ 090b076

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// sum.cfa -- test resolvers ability to deal with many variables with the same name and to use the minimum number of
//    casts necessary to disambiguate overloaded variable names.
//
// Author           : Peter A. Buhr
// Created On       : Wed May 27 17:56:53 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Fri Feb 24 22:52:12 2023
// Update Count     : 347
//

#include <fstream.hfa>
#include <stdlib.hfa>

forall( T )
trait sumable {
        void ?{}( T &, zero_t );                                                        // 0 literal constructor
        void ?{}( T &, one_t );                                                         // 1 literal constructor
        T ?+?( T, T );                                                                          // assortment of additions
        T ?+=?( T &, T );                                                                       // get pre/post ++ with += and one_t
}; // sumable

forall( T | sumable( T ) )                                                              // use trait
T sum( size_t size, T a[] ) {
        T total = 0;                                                                            // initialize by 0 constructor
        for ( i; size )
                total += a[i];                                                                  // select appropriate +
        return total;
} // sum

int main( void ) {
        const int low = 5, High = 15, size = High - low;

        signed char s = 0, a[size], v = (char)low;
        for ( int i = 0; i < size; i += 1, v += 1hh ) {
                s += v;
                a[i] = v;
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, (signed char *)a ) | ", check" | (signed char)s;

        unsigned char s = 0, a[size], v = low;
        for ( int i = 0; i < size; i += 1, v += 1hhu ) {
                s += (unsigned char)v;
                a[i] = (unsigned char)v;
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, (unsigned char *)a ) | ", check" | (unsigned char)s;

        short int s = 0, a[size], v = low;
        for ( int i = 0; i < size; i += 1, v += 1h ) {
                s += (short int)v;
                a[i] = (short int)v;
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, (short int *)a ) | ", check" | (short int)s;

        int s = 0, a[size], v = low;
        for ( int i = 0; i < size; i += 1, v += 1 ) {
                s += (int)v;
                a[i] = (int)v;
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, (int *)a ) | ", check" | (int)s;

        float s = 0.0f, a[size], v = low / 10.0f;
        for ( int i = 0; i < size; i += 1, v += 0.1f ) {
                s += (float)v;
                a[i] = (float)v;
        } // for
        sout | "sum from" | low / 10.0f | "to" | High / 10.0f | "is"
                 | sum( size, (float *)a ) | ", check" | (float)s;

        double s = 0.0, a[size], v = low / 10.0;
        for ( int i = 0; i < size; i += 1, v += 0.1 ) {
                s += (double)v;
                a[i] = (double)v;
        } // for
        sout | "sum from" | low / 10.0 | "to" | High / 10.0 | "is"
                 | sum( size, (double *)a ) | ", check" | (double)s;

        struct S { int i, j; };
        void ?{}( S & s ) { s.[i, j] = 0; }
        void ?{}( S & s, int i, int j ) { s.[i, j] = [i, j]; }
        void ?{}( S & s, zero_t ) { s.[i, j] = 0; }
        void ?{}( S & s, one_t ) { s.[i, j] = 1; }
        S ?+?( S t1, S t2 ) { return (S){ t1.i + t2.i, t1.j + t2.j }; }
        S ?+=?( S & t1, S t2 ) { t1 = t1 + t2; return t1; }
        ofstream & ?|?( ofstream & os, S v ) { return os | v.i | v.j; }
        void ?|?( ofstream & os, S v ) { (ofstream &)(os | v); ends( os ); }

        S s = 0, a[size], v = { low, low };
        for ( int i = 0; i < size; i += 1, v += (S){1} ) {
                s += (S)v;
                a[i] = (S)v;
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, (S *)a ) | ", check" | (S)s;

        forall( Impl | sumable( Impl ) )
        struct GS {
                Impl * x, * y;
        };
        GS(int) gs;
        // FIX ME, resolution problem with anew not picking up the LH type
        gs.x = (typeof(gs.x))anew( size );                                      // create array storage for field
        s = 0; v = low;
        for ( int i = 0; i < size; i += 1, v += 1 ) {
                s += (int)v;
                gs.x[i] = (int)v;                                                               // set field array in generic type
        } // for
        sout | "sum from" | low | "to" | High | "is"
                 | sum( size, gs.x ) | ", check" | (int)s;              // add field array in generic type
        delete( gs.x );
} // main

// Local Variables: //
// tab-width: 4 //
// compile-command: "cfa sum.cfa" //
// End: //