source: tests/array-collections/dimexpr-match-cfa.cfa@ fb0f04d

// These "-cfa" test cases run the dimexpr-match framework (see the hfa) on the CFA "new array."
// The test is not runnable in gcc.
// Essentially parallels dimexpr-match.cfa, but uses array(float, 17), of array.hfa, in place of `float[17]`.

#ifndef __cforall
#error This test is CFA-only
#endif

#ifdef INCLUDE_MINIMAL
#define POUNDINCLUDE #include
POUNDINCLUDE <collections/array.hfa>
#else
#include <collections/array.hfa>                                                // part of SUT
#endif

#include "dimexpr-match.hfa"                                                    // test framework

// CFA "classic" behaviour is inconsistent between "C array" and "new array."
// The impelementation of "non classic" rules makes C arrays and new arrays work the same.
#ifdef CFA_IS_CLASSIC

    // CFA "classic" allows mismatched static lengths on "new arrays," which is a bug.
    // For cfacc-classic compiling C arrays, the (expected) rejection of mismatched static lenghts happens in gcc, not cfa-cpp.
    // When the CFA input is a C array, the cfa-cc handling is passthrough, so GCC sees the error.
    // When the CFA input is a new array, the cfa-cpp handling is nontrivial; this rewriting hides the error from GCC, causing the case to be accepted.
    // This issue is fixed in the implementation of the "non classic" rules.
    #undef  RULE_CF_NE_STA_STA
    #define RULE_CF_NE_STA_STA  ACC

    // CFA "classic" rejects mismatched `[N]`s on "new arrays," which is the original signature featere of "new arrays."
    // But it is unable to do the same with `n`s.  So CFA "classic" treats `n` and `[N]` differently.
    // The impelementation of "non classic" rules extends this safety to `n`s, and to C arrays.
    #undef  GRP_K_DIM                 // reclassify dim7/dim42 as group XXX, instead of group DYN
    #define GRP_K_DIM  XXX
    #define RULE_CF_EQ_XXX_XXX  ACC   // these rules correspond with non-"classic" DYN
    #define RULE_CF_NE_XXX_XXX  REJ
    #define RULE_CF_NE_XXX_STA  REJ
    #define RULE_CF_NE_STA_XXX  REJ
    #define RULE_CF_NE_XXX_DYN  REJ
    #define RULE_CF_NE_DYN_XXX  REJ
    #define RULE_CF_NE_XXX_UNS  REJ
    #define RULE_CF_NE_UNS_XXX  REJ

#endif

forall( [N] )
void zip( array(float, N) & a, array(float, N) & b ) {}

DECLN_runTests {

    enum { enu7 = 7, enu42 = 42 };
    int mut7 = 7, mut42 = 42;

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        void f( array(float, LV) * x ) {}   \
        array(float, RV) a;                 \
        f( & a );                           \
    }
    ARRANGEMENT( PTRPARM_CALL )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        array(float, RV) a;                 \
        array(float, LV) * b = & a;         \
    }
    ARRANGEMENT( PTRVAR_INIT )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        array(float, RV) a;                 \
        array(float, LV) * b = NULL;        \
        b = & a;                            \
    }
    ARRANGEMENT( PTRVAR_ASGN )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        void f( array(float, LV) & x ) {}   \
        array(float, RV) a;                 \
        f( a );                             \
    }
    ARRANGEMENT( REFPARM_CALL )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        array(float, RV) a;                 \
        array(float, LV) & b = a;           \
    }
    ARRANGEMENT( REFVAR_INIT )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        array(float, RV) a;                 \
        array(float, LV) & b = *0p;         \
        & b = & a;                          \
    }
    ARRANGEMENT( REFVAR_ASGN )
    #undef TRY_COMPAT

    #define TRY_COMPAT( LV, RV )            \
    {                                       \
        array(float, LV) a;                 \
        array(float, RV) b;                 \
        zip( a, b );                        \
    }
    ARRANGEMENT( CALLZIP )
    #undef TRY_COMPAT

}