source: src/libcfa/iostream@ db67b11

//
// 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.
//
// iostream --
//
// Author           : Peter A. Buhr
// Created On       : Wed May 27 17:56:53 2015
// Last Modified By : Peter A. Buhr
// Last Modified On : Wed Aug  9 16:42:47 2017
// Update Count     : 131
//

#pragma once

#include "iterator"

trait ostream( dtype ostype ) {
        // private
        _Bool sepPrt( ostype * );                                                       // return separator state (on/off)
        void sepReset( ostype * );                                                      // set separator state to default state
        void sepReset( ostype *, _Bool );                                       // set separator and default state
        const char * sepGetCur( ostype * );                                     // get current separator string
        void sepSetCur( ostype *, const char * );                       // set current separator string
        _Bool getNL( ostype * );                                                        // check newline
        void setNL( ostype *, _Bool );                                          // saw newline
        // public
        void sepOn( ostype * );                                                         // turn separator state on
        void sepOff( ostype * );                                                        // turn separator state off
        _Bool sepDisable( ostype * );                                           // set default state to off, and return previous state
        _Bool sepEnable( ostype * );                                            // set default state to on, and return previous state

        const char * sepGet( ostype * );                                        // get separator string
        void sepSet( ostype *, const char * );                          // set separator to string (15 character maximum)
        const char * sepGetTuple( ostype * );                           // get tuple separator string
        void sepSetTuple( ostype *, const char * );                     // set tuple separator to string (15 character maximum)

        int fail( ostype * );
        int flush( ostype * );
        void open( ostype * os, const char * name, const char * mode );
        void close( ostype * os );
        ostype * write( ostype *, const char *, unsigned long int );
        int fmt( ostype *, const char fmt[], ... );
}; // ostream

// trait writeable( otype T ) {
//      forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, T );
// }; // writeable

trait writeable( otype T, dtype ostype | ostream( ostype ) ) {
        ostype * ?|?( ostype *, T );
}; // writeable

// implement writable for intrinsic types

forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, char );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, signed char );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, unsigned char );

forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, short int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, unsigned short int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, unsigned int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, long int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, long long int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, unsigned long int );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, unsigned long long int );

forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, float ); // FIX ME: should not be required
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, double );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, long double );

forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, float _Complex );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, double _Complex );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, long double _Complex );

forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, const char * );
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, const void * );

// tuples
forall( dtype ostype, otype T, ttype Params | writeable( T, ostype ) | { ostype * ?|?( ostype *, Params ); } )
ostype * ?|?( ostype * os, T arg, Params rest );

// manipulators
forall( dtype ostype | ostream( ostype ) ) ostype * ?|?( ostype *, ostype * (*)( ostype * ) );
forall( dtype ostype | ostream( ostype ) ) ostype * endl( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sep( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sepTuple( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sepOn( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sepOff( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sepDisable( ostype * );
forall( dtype ostype | ostream( ostype ) ) ostype * sepEnable( ostype * );

// writes the range [begin, end) to the given stream
forall( dtype ostype, otype elt_type | writeable( elt_type, ostype ), otype iterator_type | iterator( iterator_type, elt_type ) )
void write( iterator_type begin, iterator_type end, ostype * os );

forall( dtype ostype, otype elt_type | writeable( elt_type, ostype ), otype iterator_type | iterator( iterator_type, elt_type ) )
void write_reverse( iterator_type begin, iterator_type end, ostype * os );

//---------------------------------------

trait istream( dtype istype ) {
        int fail( istype * );
        int eof( istype * );
        void open( istype * is, const char * name, const char * mode );
        void close( istype * is );
        istype * read( istype *, char *, unsigned long int );
        istype * ungetc( istype *, char );
        int fmt( istype *, const char fmt[], ... );
}; // istream

trait readable( otype T ) {
        forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, T );
}; // readable

forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, char * );

forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, short int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, unsigned short int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, unsigned int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, long int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, long long int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, unsigned long int * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, unsigned long long int * );

forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, float * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, double * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, long double * );

forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, float _Complex * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, double _Complex * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, long double _Complex * );

struct _Istream_cstrUC { char * s; };
_Istream_cstrUC cstr( char * );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, _Istream_cstrUC );

struct _Istream_cstrC { char * s; int size; };
_Istream_cstrC cstr( char *, int size );
forall( dtype istype | istream( istype ) ) istype * ?|?( istype *, _Istream_cstrC );

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