volatile.c

开放源码的编译器open watcom 1.6.0版的源代码

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//
// VOLATILE   : VOLATILE statement
//

#include "ftnstd.h"
#include "errcod.h"
#include "global.h"
#include "namecod.h"
#include "recog.h"
#include "ferror.h"
#include "insert.h"
#include "utility.h"

extern  sym_id          LkSym(void);

#define ERR_MASK    (SY_USAGE | SY_TYPE | SY_IN_DIMEXPR | SY_SUBSCRIPTED | \
                     SY_DATA_INIT | SY_SAVED | SY_IN_EC | SY_REFERENCED)


void    CpVolatile( void ) {
//====================

// Compile VOLATILE statement.

//     VOLATILE VAR {,VAR1} . . .

    sym_id      sym;

    for(;;) {
        if( ReqName( NAME_VAR_OR_ARR ) ) {
            sym = LkSym();
            if( (sym->ns.flags & ~ERR_MASK ) != SY_VARIABLE ) {
                IllName( sym );
            } else {
                sym->ns.xflags |= SY_VOLATILE;
            }
        }
        AdvanceITPtr();
        if( !RecComma() ) break;
    }
    ReqEOS();
}