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#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include "alloc.h"
#include "fail.h"
#include "memory.h"
#include "mlvalues.h"
#include "misc.h"
#include "stacks.h"
#ifdef ALIGN_DOUBLE
#if defined(__GNUC__) && defined(__sparc__)
/* GCC for the Sparc is the major offender here, since it uses ldd and std
to operate on doubles, therefore requiring 8-alignment of doubles.
This is a hack to coerce GCC into generating the right code: two ld
or two st. */
inline double Double_val(val)
value val;
{
double result;
asm("ld [%1], %0; ld [%1+4], %R0" : "=f" (result) : "r" (val));
return result;
}
inline void Store_double_val(val, dbl)
value val;
double dbl;
{
asm("st %0, [%1]; st %R0, [%1+4]" : : "r" (dbl), "r" (val));
}
#else
double Double_val(val)
value val;
{
union { value v[2]; double d; } buffer;
Assert(sizeof(double) == 2 * sizeof(value));
buffer.v[0] = Field(val, 0);
buffer.v[1] = Field(val, 1);
return buffer.d;
}
void Store_double_val(val, dbl)
value val;
double dbl;
{
union { value v[2]; double d; } buffer;
Assert(sizeof(double) == 2 * sizeof(value));
buffer.d = dbl;
Field(val, 0) = buffer.v[0];
Field(val, 1) = buffer.v[1];
}
#endif
#endif
value copy_double(d)
double d;
{
value res;
#define Setup_for_gc
#define Restore_after_gc
Alloc_small(res, Double_wosize, Double_tag);
#undef Setup_for_gc
#undef Restore_after_gc
Store_double_val(res, d);
return res;
}
value format_float(fmt, arg) /* ML */
value fmt, arg;
{
char format_buffer[64];
int prec, i;
char * p;
char * dest;
value res;
prec = 64;
for (p = String_val(fmt); *p != 0; p++) {
if (*p >= '0' && *p <= '9') {
i = atoi(p) + 15;
if (i > prec) prec = i;
break;
}
}
for( ; *p != 0; p++) {
if (*p == '.') {
i = atoi(p+1) + 15;
if (i > prec) prec = i;
break;
}
}
if (prec <= sizeof(format_buffer)) {
dest = format_buffer;
} else {
dest = stat_alloc(prec);
}
sprintf(dest, String_val(fmt), Double_val(arg));
res = copy_string(dest);
if (dest != format_buffer) {
stat_free(dest);
}
return res;
}
value float_of_string(s) /* ML */
value s;
{
return copy_double(atof(String_val(s)));
}
value int_of_float(f) /* ML */
value f;
{
return Val_long((long) Double_val(f));
}
value float_of_int(n) /* ML */
value n;
{
return copy_double((double) Long_val(n));
}
value neg_float(f) /* ML */
value f;
{
return copy_double(- Double_val(f));
}
value add_float(f, g) /* ML */
value f, g;
{
return copy_double(Double_val(f) + Double_val(g));
}
value sub_float(f, g) /* ML */
value f, g;
{
return copy_double(Double_val(f) - Double_val(g));
}
value mul_float(f, g) /* ML */
value f, g;
{
return copy_double(Double_val(f) * Double_val(g));
}
value div_float(f, g) /* ML */
value f, g;
{
double dg = Double_val(g);
if (dg == 0.0) raise_zero_divide();
return copy_double(Double_val(f) / dg);
}
value exp_float(f) /* ML */
value f;
{
return copy_double(exp(Double_val(f)));
}
value log_float(f) /* ML */
value f;
{
return copy_double(log(Double_val(f)));
}
value sqrt_float(f) /* ML */
value f;
{
return copy_double(sqrt(Double_val(f)));
}
value power_float(f, g) /* ML */
value f, g;
{
return copy_double(pow(Double_val(f), Double_val(g)));
}
value sin_float(f) /* ML */
value f;
{
return copy_double(sin(Double_val(f)));
}
value cos_float(f) /* ML */
value f;
{
return copy_double(cos(Double_val(f)));
}
value tan_float(f) /* ML */
value f;
{
return copy_double(tan(Double_val(f)));
}
value asin_float(f) /* ML */
value f;
{
return copy_double(asin(Double_val(f)));
}
value acos_float(f) /* ML */
value f;
{
return copy_double(acos(Double_val(f)));
}
value atan_float(f) /* ML */
value f;
{
return copy_double(atan(Double_val(f)));
}
value atan2_float(f, g) /* ML */
value f, g;
{
return copy_double(atan2(Double_val(f), Double_val(g)));
}
value eq_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) == Double_val(g));
}
value neq_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) != Double_val(g));
}
value le_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) <= Double_val(g));
}
value lt_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) < Double_val(g));
}
value ge_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) >= Double_val(g));
}
value gt_float(f, g) /* ML */
value f, g;
{
return Val_bool(Double_val(f) > Double_val(g));
}
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