source: tests/init1.cfa@ 4be0117

//
// Cforall Version 1.0.0 Copyright (C) 2020 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// init1.cfa -- tests of initializing pointer- and reference-typed variables and returns
//
// Author           : Michael Brooks
// Created On       : Thu Jul 16 22:00:00 2020
// Last Modified By : Peter A. Buhr
// Last Modified On : Sat Jun  5 10:06:57 2021
// Update Count     : 9
//

void f() {

    //
    // setup
    //

    float x = 3.14;

    float & rx = x;
    float * px = &x;

    const float & crx = x;
    const float * cpx = &x;

    //
    // sound initializations
    //

    char * str1 = "hi";             (void) str1;
    const char * str2 = "hi";       (void) str2;

    float & rx2 = rx;               (void) rx2;
    float * px2 = px;               (void) px2;

    const float & crx2 = crx;       (void) crx2;
    const float * cpx2 = cpx;       (void) cpx2;

    // FIX ME: Code gen not producing correct cast.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wincompatible-pointer-types"
    int (* fp)( int ) = 0p;
    fp = 0p;
#pragma GCC diagnostic pop

    //
    // unsound initializations
    //

    #ifdef ERR1
    // mismatched referenced type
    int & ry = rx;
    int * py = px;

    // would discard refered constness (same float is referenced)
    float & ry2 = crx;
    float * py2 = cpx;
    #endif // ERR1
}

//
// sound returns
//

char * f_str1() {
    return "hi";
}

const char * f_str2() {
    return "hi";
}

float & f_rx2 () {
    float & rx = *0p;
    return rx;
}

float * f_px2 () {
    float * px = 0p;
    return px;
}

const float & f_crx2 () {
    float & rx = *0p;
    return rx;
}

const float * f_cpx2 () {
    float * px = 0p;
    return px;
}

//
// unsound returns
//

#ifdef ERR1
int & f_ry() { 
    float & rx = *0p;
    return rx;               // mismatched referenced type
}

int * f_py() {
    float * px = 0p;
    return px;               // mismatched referenced type
}

float & f_ry2() {
    const float & crx = *0p;
    return crx;              // would discard refered constness (same float is referenced)
}

float * f_py2() {
    const float * cpx = 0p;
    return cpx;              // would discard refered constness (same float is referenced)
}

forall (T &, S &)
T & anycvt( S & s ) {
    return s;               // mismatched referenced type
}

forall (T &, S &)
T * anycvt( S * s ) {
    return s;               // mismatched referenced type
}
#endif // ERR1

int main() {
    printf("done\n");
}