/**
* Output the first n best rational approximations of rational q
*/
void cpt_rat_approx(mpq_t *res, mpq_srcptr q, unsigned int *n)
{
mpz_t pnm1,pnm2,qnm1,qnm2,pn,qn,a,num,den;
mpz_init_set_si(pnm1,1);
mpz_init_set_si(pnm2,0);
mpz_init_set_si(qnm1,0);
mpz_init_set_si(qnm2,1);
mpz_init(pn);
mpz_init(qn);
mpz_init(a);
mpz_init(num);
mpz_init(den);
mpq_get_num(num,q);
mpq_get_den(den,q);
for(unsigned int i = 0; i < *n; i++)
{
if(mpz_cmp_si(den,0) == 0)
{
*n = i;
break;
}
__rat_approx_step(res[i], num, den, a, pnm2, pnm1, qnm2, qnm1, pn, qn);
}
mpz_clear(pnm1);
mpz_clear(pnm2);
mpz_clear(qnm1);
mpz_clear(qnm2);
mpz_clear(pn);
mpz_clear(qn);
mpz_clear(a);
mpz_clear(num);
mpz_clear(den);
}
char *dd_MLGetStrForNumber(mytype x)
{
/* This is to make a string of rational expression for GMP rational number x.
It does nothing (return NULL) if x is double. */
char *sd=NULL,*sn=NULL,*st=NULL;
#if defined GMPRATIONAL
mpz_t zn,zd;
int len;
mpz_init(zn); mpz_init(zd);
mpq_canonicalize(x);
mpq_get_num(zn,x);
mpq_get_den(zd,x);
if (mpz_sgn(zn)==0){
st=(char *)malloc(2);
strcpy(st," 0");
} else if (mpz_cmp_ui(zd,1U)==0){
st=mpz_get_str(st,10,zn);
} else {
sn=mpz_get_str(sn,10,zn);sd=mpz_get_str(sd,10,zd);
len=strlen(sn)+strlen(sd)+2;
st=(char *)malloc(len);
strcpy(st,sn);
strcat(st,"/");strcat(st,sd);
}
mpz_clear(zn); mpz_clear(zd);
if (sd!=NULL) free(sd);
if (sn!=NULL) free(sn);
#else
/* do nothing */
#endif
/* printf("String for Number =%s\n",st); */
return st;
}
static void
dumpSkip(mpq_t *t, const symbol_t *scan)
{
static int initialized = 0;
static mpq_t dt;
static int de;
static int nu;
static mpz_t zde;
static mpz_t znu;
int rnd;
if (! initialized) {
mpq_init(dt);
mpz_init(zde);
mpz_init(znu);
initialized = 1;
}
if (mpq_equal(*t, scan->start)) {
return;
}
while (dump_tuplet_current != NO_ID) {
/* stop */
fprintf(lily_out, " }");
tuplet_pop(&dump_tuplet_current);
}
if (mpq_cmp(*t, scan->start) > 0) {
fprintf(stderr, "Uh oh -- start time ");
mpq_out_str(stderr, 10, scan->start);
fprintf(stderr, " is too low, should be ");
mpq_out_str(stderr, 10, *t);
fprintf(stderr, " -- is my voice analysis correct?\n");
return;
}
mpq_sub(dt, scan->start, *t);
mpq_get_num(znu, dt);
mpq_get_den(zde, dt);
nu = mpz_get_ui(znu);
de = mpz_get_ui(zde);
rnd = nu / de;
if (rnd != 0) {
fprintf(lily_out, " s1*%d", rnd);
nu -= rnd * de;
}
if (! is_two_pow(de)) {
fprintf(stderr, "Uh oh -- skip now already a tuplet %d/%d??\n", nu, de);
fprintf(lily_out, " s1*%d/%d", nu, de);
} else {
if (nu != 0) {
fprintf(lily_out, " s%d*%d", de, nu);
}
}
last_dumped_symbol = &sym_any_skip;
mpq_set(*t, scan->start);
VPRINTF(" skip to t = ");
VPRINT_MPQ(*t);
}
gint random_integer_with_probability(mpq_t *p, gint n)
{
mpz_t *den;
den = (mpz_t *)g_malloc(sizeof(mpz_t) * n);
int i;
for(i = 0; i < n; ++i)
{
mpz_init(den[i]);
mpq_get_den(den[i], p[i]);
}
mpz_t l;
mpz_init(l);
lcm(l, den, n);
mpq_t nlcm;
mpq_init(nlcm);
mpq_set_z(nlcm, l);
int lc = mpz_get_ui(l);
gint x = g_random_int_range(0, lc);
mpq_t y;
mpq_init(y);
mpq_set_si(y, x, 1);
mpq_t p_i;
mpq_init(p_i);
int j = n - 1;
for(i = 0; i < n - 1; i++)
{
mpq_mul(p_i, nlcm, p[i]);
if(mpq_cmp(y, p_i) < 0)
{
j = i;
break;
}
mpq_sub(y, y, p_i);
}
for(i = 0; i < n; ++i)
{
mpz_clear(den[i]);
}
g_free(den);
mpz_clear(l);
mpq_clear(nlcm);
mpq_clear(y);
mpq_clear(p_i);
return j;
}
Integer Rational::GetDenomerator()
{
Integer denomerator;
mpz_t denom;
mpz_init(denom);
mpq_get_den(denom, number);
denomerator = denom;
return denomerator;
}
var Pretty(Kernel& k, const Rational& x) {
mpq_canonicalize(const_cast<mpq_ptr>(x.mpq));
Integer *a = new Integer, *b = new Integer;
mpq_get_num(a->mpz, x.mpq);
mpq_get_den(b->mpz, x.mpq);
if(mpz_cmp_ui(b->mpz, 1) == 0)
return Pretty(k, Z(a));
if(mpz_sgn(a->mpz) < 0)
{
mpz_neg(a->mpz, a->mpz);
return nV::tuple($.Minus, nV::tuple(SYS(Divide), a, b));
}
void sccwriter::write_code( Expr* code, std::ostream& os, int ind, const char* retModStr, int opts )
{
std::string retModString;
std::string incString;
if ( retModStr )
{
retModString = std::string( retModStr );
retModString.append( " = " );
incString = std::string( retModStr );
incString.append( "->inc();" );
}
switch( code->getclass() )
{
case INT_EXPR:
{
indent( os, ind );
os << retModString.c_str();
os << "new IntExpr( " << mpz_get_si( ((IntExpr*)code)->n ) << " );" << std::endl;
indent( os, ind );
os << incString.c_str() << std::endl;
}
break;
case RAT_EXPR:
{
mpz_t num, den;
mpz_init(num);
mpz_init(den);
mpq_get_num( num, ((RatExpr*)code)->n );
mpq_get_den( den, ((RatExpr*)code)->n );
indent( os, ind );
os << retModString.c_str();
os << "new RatExpr( " << mpz_get_si( num ) << ", " << mpz_get_si( den ) << " );" << std::endl;
indent( os, ind );
os << incString.c_str() << std::endl;
}
break;
case SYMS_EXPR:
{
//if it is a variable, simply write it to buffer
if( is_var( ((SymSExpr*)code)->s ) )
{
indent( os, ind );
os << retModString.c_str();
write_variable( ((SymSExpr*)code)->s.c_str(), os );
os << ";" << std::endl;
}
else //else must look at symbol lookup table
{
std::string var;
get_var_name( ((SymSExpr*)code)->s, var );
indent( os, ind );
os << retModString.c_str() << "e_" << var.c_str() << ";" << std::endl;
add_global_sym( var );
}
indent( os, ind );
os << incString.c_str() << std::endl;
}
break;
default:
switch( code->getop() )
{
case APP:
{
//collect the arguments
std::vector< Expr* > argVector;
code->collect_args( argVector );
//write the arguments
std::vector< std::string > args;
for( int a=0; a<(int)argVector.size(); a++ )
{
std::string expr;
write_expr( argVector[a], os, ind, expr );
args.push_back( expr );
}
//write_args( (CExpr*)code, os, ind, 1, args );
Expr* hd = code->get_head();
//map to a program in the case that it is a program
if( hd->getop()==PROG && get_prog_index_by_expr( hd )!=-1 )
{
indent( os, ind );
os << retModString << "f_" << progNames[ get_prog_index_by_expr( hd ) ].c_str() << "( ";
for( int a=0; a<(int)args.size(); a++ )
{
os << args[a].c_str();
if( a!=(int)( args.size()-1 ) ){
os << ", ";
}
}
os << " );" << std::endl;
for( int a=0; a<(int)args.size(); a++ )
{
write_dec( args[a], os, ind );
}
}
else
{
#ifdef USE_FLAT_APP
std::string expr;
write_expr( hd, os, ind, expr );
indent( os, ind );
os << retModString << "new CExpr( APP, ";
os << expr.c_str() << ", ";
for( int a=0; a<(int)args.size(); a++ )
{
os << args[a].c_str();
if( a!=(int)( args.size()-1 ) ){
os << ", ";
}
}
os << " );" << std::endl;
#else
std::string expr;
write_expr( hd, os, ind, expr );
indent( os, ind );
os << retModString;
for( int a=0; a<(int)args.size(); a++ )
{
os << "new CExpr( APP, ";
}
os << expr.c_str() << ", ";
for( int a=0; a<(int)args.size(); a++ )
{
os << args[a].c_str();
os << " )";
if( a!=(int)( args.size()-1 ) ){
os << ", ";
}
}
os << ";" << std::endl;
#endif
//indent( os, ind );
//os << expr.c_str() << "->dec();" << std::endl;
}
}
break;
case MATCH:
{
//calculate the value for the expression
std::string expr;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr );
//get the head
std::ostringstream sshd;
sshd << "e" << exprCount;
exprCount++;
indent( os, ind );
os << "Expr* " << sshd.str().c_str() << " = " << expr.c_str() << "->followDefs()->get_head();" << std::endl;
//write the arguments
std::vector< std::string > args;
write_args( (CExpr*)code, os, ind, 1, args );
bool encounterDefault = false;
//now make an if statement corresponding to the match
int a = 0;
while( ((CExpr*)code)->kids[a+1] )
{
indent( os, ind );
if( a!=0 ){
os << "}else";
}
if( ((CExpr*)code)->kids[a+1]->getop()!=CASE ){
encounterDefault = true;
os << "{" << std::endl;
//write the body of the case
write_code( ((CExpr*)code)->kids[a+1], os, ind+1, retModStr );
indent( os, ind );
os << "}" << std::endl;
}else{
if( a!=0 )
os << " ";
os << "if( " << sshd.str().c_str() << "==" << args[a].c_str() << " ){" << std::endl;
//collect args from the variable in the code
std::ostringstream ssargs;
ssargs << "args" << argsCount;
argsCount++;
#ifndef USE_FLAT_APP
indent( os, ind+1 );
os << "std::vector< Expr* > " << ssargs.str().c_str() << ";" << std::endl;
indent( os, ind+1 );
os << expr.c_str() << "->followDefs()->collect_args( " << ssargs.str().c_str() << " );" << std::endl;
#endif
//set the variables defined in the pattern equal to the arguments
std::vector< Expr* > caseArgs;
((CExpr*)((CExpr*)code)->kids[a+1])->kids[0]->collect_args( caseArgs );
for( int b=0; b<(int)caseArgs.size(); b++ )
{
indent( os, ind+1 );
os << "Expr* ";
write_variable( ((SymSExpr*)caseArgs[b])->s.c_str(), os );
#ifdef USE_FLAT_APP
os << " = ((CExpr*)" << expr.c_str() << "->followDefs())->kids[" << b+1 << "];" << std::endl;
#else
os << " = " << ssargs.str().c_str() << "[" << b << "];" << std::endl;
#endif
vars.push_back( ((SymSExpr*)caseArgs[b])->s );
}
//write the body of the case
write_code( ((CExpr*)code)->kids[a+1], os, ind+1, retModStr, opt_write_case_body );
}
a++;
}
if( !encounterDefault )
{
indent( os, ind );
os << "}else{" << std::endl;
indent( os, ind + 1 );
os << "std::cout << \"Could not find match for expression in function f_";
os << progNames[currProgram].c_str() << " \";" << std::endl;
indent( os, ind + 1 );
os << sshd.str().c_str() << "->print( std::cout );" << std::endl;
indent( os, ind + 1 );
os << "std::cout << std::endl;" << std::endl;
indent( os, ind + 1 );
os << "exit( 1 );" << std::endl;
indent( os, ind );
os << "}" << std::endl;
}
write_dec( expr, os, ind );
for( int a=0; a<(int)args.size(); a++ )
{
write_dec( args[a], os, ind );
}
}
break;
case CASE:
if( opts&opt_write_case_body )
{
write_code( ((CExpr*)code)->kids[1], os, ind, retModStr );
}
else
{
write_code( ((CExpr*)code)->kids[0]->get_head(), os, ind, retModStr );
}
break;
case DO:
{
//write each of the children in sequence
int counter = 0;
while( ((CExpr*)code)->kids[counter] )
{
if( ((CExpr*)code)->kids[counter+1]==NULL )
{
write_code( ((CExpr*)code)->kids[counter], os, ind, retModStr );
}
else
{
std::string expr;
write_expr( ((CExpr*)code)->kids[counter], os, ind, expr );
//clean up memory
write_dec( expr, os, ind );
}
counter++;
}
}
break;
case LET:
{
indent( os, ind );
os << "Expr* ";
write_variable( ((SymSExpr*)((CExpr*)code)->kids[0])->s, os );
os << ";" << std::endl;
std::ostringstream ss;
write_variable( ((SymSExpr*)((CExpr*)code)->kids[0])->s, ss );
write_code( ((CExpr*)code)->kids[1], os, ind, ss.str().c_str() );
//add it to the variables
vars.push_back( ((SymSExpr*)((CExpr*)code)->kids[0])->s );
write_code( ((CExpr*)code)->kids[2], os, ind, retModStr );
//clean up memory
indent( os, ind );
write_variable( ((SymSExpr*)((CExpr*)code)->kids[0])->s, os );
os << "->dec();" << std::endl;
}
break;
case FAIL:
{
indent( os, ind );
os << retModString.c_str() << "NULL;" << std::endl;
}
break;
#ifndef MARKVAR_32
case MARKVAR:
{
//calculate the value for the expression
std::string expr;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr, opt_write_check_sym_expr );
//set the mark on the expression
indent( os, ind );
os << "if (" << expr.c_str() << "->followDefs()->getmark())" << std::endl;
indent( os, ind+1 );
os << expr.c_str() << "->followDefs()->clearmark();" << std::endl;
indent( os, ind );
os << "else" << std::endl;
indent( os, ind+1 );
os << expr.c_str() << "->followDefs()->setmark();" << std::endl;
//write the return if necessary
if( retModStr!=NULL ){
indent( os, ind );
os << retModString.c_str() << expr.c_str() << ";" << std::endl;
indent( os, ind );
os << incString.c_str() << std::endl;
}
write_dec( expr, os, ind );
}
break;
case IFMARKED:
{
//calculate the value for the expression
std::string expr;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr, opt_write_check_sym_expr );
//if mark is set, write code for kids[1]
indent( os, ind );
os << "if (" << expr.c_str() << "->followDefs()->getmark()){" << std::endl;
write_code( ((CExpr*)code)->kids[1], os, ind+1, retModStr );
//else write code for kids[2]
indent( os, ind );
os << "}else{" << std::endl;
write_code( ((CExpr*)code)->kids[2], os, ind+1, retModStr );
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr, os, ind );
}
break;
#else
case MARKVAR:
{
//calculate the value for the expression
std::string expr;
write_expr( ((CExpr*)code)->kids[1], os, ind, expr, opt_write_check_sym_expr );
//set the mark on the expression
indent( os, ind );
os << "if ( ((SymExpr*)" << expr.c_str() << "->followDefs())->getmark(";
os << ((IntExpr*)((CExpr*)code)->kids[0])->get_num() << "))" << std::endl;
indent( os, ind+1 );
os << "((SymExpr*)" << expr.c_str() << "->followDefs())->clearmark(";
os << ((IntExpr*)((CExpr*)code)->kids[0])->get_num() << ");" << std::endl;
indent( os, ind );
os << "else" << std::endl;
indent( os, ind+1 );
os << "((SymExpr*)" << expr.c_str() << "->followDefs())->setmark(";
os << ((IntExpr*)((CExpr*)code)->kids[0])->get_num() << ");" << std::endl;
//write the return if necessary
if( retModStr!=NULL ){
indent( os, ind );
os << retModString.c_str() << expr.c_str() << ";" << std::endl;
indent( os, ind );
os << incString.c_str() << std::endl;
}
write_dec( expr, os, ind );
}
break;
case COMPARE:
{
std::string expr1, expr2;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr1, opt_write_check_sym_expr );
write_expr( ((CExpr*)code)->kids[1], os, ind, expr2, opt_write_check_sym_expr );
indent( os, ind );
os << "if( ((SymExpr*)" << expr1.c_str() << ")->followDefs() < ((SymExpr*)" << expr2.c_str() << ")->followDefs() ){" << std::endl;
write_code( ((CExpr*)code)->kids[2], os, ind+1, retModStr );
indent( os, ind );
os << "}else{" << std::endl;
write_code( ((CExpr*)code)->kids[3], os, ind+1, retModStr );
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr1, os, ind );
write_dec( expr2, os, ind );
}
break;
case IFMARKED:
{
//calculate the value for the expression
std::string expr;
write_expr( ((CExpr*)code)->kids[1], os, ind, expr, opt_write_check_sym_expr );
//if mark is set, write code for kids[1]
indent( os, ind );
os << "if ( ((SymExpr*)" << expr.c_str() << "->followDefs())->getmark(";
os << ((IntExpr*)((CExpr*)code)->kids[0])->get_num() << ")){" << std::endl;
write_code( ((CExpr*)code)->kids[2], os, ind+1, retModStr );
//else write code for kids[2]
indent( os, ind );
os << "}else{" << std::endl;
write_code( ((CExpr*)code)->kids[3], os, ind+1, retModStr );
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr, os, ind );
}
break;
#endif
case ADD:
case MUL:
case DIV:
{
//calculate the value for the first expression
std::string expr1;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr1 );
//calculate the value for the second expression
std::string expr2;
write_expr( ((CExpr*)code)->kids[1], os, ind, expr2 );
std::ostringstream ss;
ss << "rnum" << rnumCount;
rnumCount++;
indent( os, ind );
os << "if( " << expr1.c_str() << "->followDefs()->getclass()==INT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "mpz_t " << ss.str().c_str() << ";" << std::endl;
indent( os, ind+1 );
os << "mpz_init(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind+1 );
os << "mpz_";
if( code->getop()==ADD )
os << "add";
else
os << "mul";
os << "( " << ss.str().c_str() << ", ((IntExpr*)" << expr1.c_str() << "->followDefs())->n, ((IntExpr*)" << expr2.c_str() << "->followDefs())->n);" << std::endl;
indent( os, ind+1 );
os << retModString.c_str() << "new IntExpr(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind );
os << "}else if( " << expr1.c_str() << "->followDefs()->getclass()==RAT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "mpq_t " << ss.str().c_str() << ";" << std::endl;
indent( os, ind+1 );
os << "mpq_init(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind+1 );
os << "mpq_";
if( code->getop()==ADD )
os << "add";
else if( code->getop()==MUL )
os << "mul";
else
os << "div";
os << "( " << ss.str().c_str() << ", ((RatExpr*)" << expr1.c_str() << "->followDefs())->n, ((RatExpr*)" << expr2.c_str() << "->followDefs())->n);" << std::endl;
indent( os, ind+1 );
os << retModString.c_str() << "new RatExpr(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr1, os, ind );
write_dec( expr2, os, ind );
}
break;
case NEG:
{
//calculate the value for the first expression
std::string expr1;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr1 );
std::ostringstream ss;
ss << "rnum" << rnumCount;
rnumCount++;
indent( os, ind );
os << "if( " << expr1.c_str() << "->followDefs()->getclass()==INT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "mpz_t " << ss.str().c_str() << ";" << std::endl;
indent( os, ind+1 );
os << "mpz_init(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind+1 );
os << "mpz_neg( " << ss.str().c_str() << ", ((IntExpr*)" << expr1.c_str() << "->followDefs())->n );" << std::endl;
indent( os, ind+1 );
os << retModString.c_str() << "new IntExpr(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind );
os << "}else if( " << expr1.c_str() << "->followDefs()->getclass()==RAT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "mpq_t " << ss.str().c_str() << ";" << std::endl;
indent( os, ind+1 );
os << "mpq_init(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind+1 );
os << "mpq_neg( " << ss.str().c_str() << ", ((RatExpr*)" << expr1.c_str() << "->followDefs())->n );" << std::endl;
indent( os, ind+1 );
os << retModString.c_str() << "new RatExpr(" << ss.str().c_str() << ");" << std::endl;
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr1, os, ind );
}
break;
case IFNEG:
case IFZERO:
{
std::string expr1;
write_expr( ((CExpr*)code)->kids[0], os, ind, expr1 );
indent( os, ind );
os << "if( " << expr1.c_str() << "->followDefs()->getclass()==INT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "if( mpz_sgn( ((IntExpr *)" << expr1.c_str() << "->followDefs())->n ) ";
if( code->getop()==IFNEG )
os << "<";
else
os << "==";
os << " 0 ){" << std::endl;
write_code( ((CExpr*)code)->kids[1], os, ind+2, retModStr );
indent( os, ind+1 );
os << "}else{" << std::endl;
write_code( ((CExpr*)code)->kids[2], os, ind+2, retModStr );
indent( os, ind+1 );
os << "}" << std::endl;
indent( os, ind );
os << "}else if( " << expr1.c_str() << "->followDefs()->getclass()==RAT_EXPR ){" << std::endl;
indent( os, ind+1 );
os << "if( mpq_sgn( ((RatExpr *)" << expr1.c_str() << "->followDefs())->n ) ";
if( code->getop()==IFNEG )
os << "<";
else
os << "==";
os << " 0 ){" << std::endl;
write_code( ((CExpr*)code)->kids[1], os, ind+2, retModStr );
indent( os, ind+1 );
os << "}else{" << std::endl;
write_code( ((CExpr*)code)->kids[2], os, ind+2, retModStr );
indent( os, ind+1 );
os << "}" << std::endl;
indent( os, ind );
os << "}" << std::endl;
//clean up memory
write_dec( expr1, os, ind );
}
break;
case RUN:/*?*/break;
case PI:/*?*/break;
case LAM:/*?*/break;
case TYPE:/*?*/break;
case KIND:/*?*/break;
case ASCRIBE:/*?*/break;
case MPZ:/*?*/break;
case PROG:/*?*/break;
case PROGVARS:/*?*/break;
case PAT:/*?*/break;
}
break;
}
}
