altos/scheme: Add ports. Split scheme code up.

[fw/altos] / src / scheme / ao_scheme_float.c

diff --git a/src/scheme/ao_scheme_float.c b/src/scheme/ao_scheme_float.c
index 541f02644f37f51043210968fe82585325e3e8c3..483035f9cb205f1bb514c737184cb9e5e3569186 100644 (file)
--- a/src/scheme/ao_scheme_float.c
+++ b/src/scheme/ao_scheme_float.c
@@ -15,6 +15,8 @@
 #include "ao_scheme.h"
 #include <math.h>
 
+#ifdef AO_SCHEME_FEATURE_FLOAT
+
 static void float_mark(void *addr)
 {
        (void) addr;
@@ -39,22 +41,27 @@ const struct ao_scheme_type ao_scheme_float_type = {
        .name = "float",
 };
 
+#ifndef FLOAT_FORMAT
+#define FLOAT_FORMAT "%g"
+#endif
+
 void
-ao_scheme_float_write(ao_poly p)
+ao_scheme_float_write(FILE *out, ao_poly p, bool write)
 {
        struct ao_scheme_float *f = ao_scheme_poly_float(p);
        float   v = f->value;
 
+       (void) write;
        if (isnanf(v))
-               printf("+nan.0");
+               fputs("+nan.0", out);
        else if (isinff(v)) {
                if (v < 0)
-                       printf("-");
+                       putc('-', out);
                else
-                       printf("+");
-               printf("inf.0");
+                       putc('+', out);
+               fputs("inf.0", out);
        } else
-               printf ("%g", f->value);
+               fprintf(out, FLOAT_FORMAT, v);
 }
 
 float
@@ -63,10 +70,10 @@ ao_scheme_poly_number(ao_poly p)
        switch (ao_scheme_poly_base_type(p)) {
        case AO_SCHEME_INT:
                return ao_scheme_poly_int(p);
+       case AO_SCHEME_BIGINT:
+               return ao_scheme_poly_bigint(p)->value;
        case AO_SCHEME_OTHER:
                switch (ao_scheme_other_type(ao_scheme_poly_other(p))) {
-               case AO_SCHEME_BIGINT:
-                       return ao_scheme_bigint_int(ao_scheme_poly_bigint(p)->value);
                case AO_SCHEME_FLOAT:
                        return ao_scheme_poly_float(p)->value;
                }
@@ -88,9 +95,13 @@ ao_scheme_float_get(float value)
 ao_poly
 ao_scheme_do_inexactp(struct ao_scheme_cons *cons)
 {
-       if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+       ao_poly val;
+
+       if (!ao_scheme_parse_args(_ao_scheme_atom_inexact3f, cons,
+                                 AO_SCHEME_POLY, &val,
+                                 AO_SCHEME_ARG_END))
                return AO_SCHEME_NIL;
-       if (ao_scheme_poly_type(ao_scheme_arg(cons, 0)) == AO_SCHEME_FLOAT)
+       if (ao_scheme_poly_type(val) == AO_SCHEME_FLOAT)
                return _ao_scheme_bool_true;
        return _ao_scheme_bool_false;
 }
@@ -98,18 +109,19 @@ ao_scheme_do_inexactp(struct ao_scheme_cons *cons)
 ao_poly
 ao_scheme_do_finitep(struct ao_scheme_cons *cons)
 {
-       ao_poly value;
+       ao_poly val;
        float   f;
 
-       if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+       if (!ao_scheme_parse_args(_ao_scheme_atom_inexact3f, cons,
+                                 AO_SCHEME_POLY, &val,
+                                 AO_SCHEME_ARG_END))
                return AO_SCHEME_NIL;
-       value = ao_scheme_arg(cons, 0);
-       switch (ao_scheme_poly_type(value)) {
+       switch (ao_scheme_poly_type(val)) {
        case AO_SCHEME_INT:
        case AO_SCHEME_BIGINT:
                return _ao_scheme_bool_true;
        case AO_SCHEME_FLOAT:
-               f = ao_scheme_poly_float(value)->value;
+               f = ao_scheme_poly_float(val)->value;
                if (!isnan(f) && !isinf(f))
                        return _ao_scheme_bool_true;
        }
@@ -119,15 +131,16 @@ ao_scheme_do_finitep(struct ao_scheme_cons *cons)
 ao_poly
 ao_scheme_do_infinitep(struct ao_scheme_cons *cons)
 {
-       ao_poly value;
+       ao_poly val;
        float   f;
 
-       if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
+       if (!ao_scheme_parse_args(_ao_scheme_atom_inexact3f, cons,
+                                 AO_SCHEME_POLY, &val,
+                                 AO_SCHEME_ARG_END))
                return AO_SCHEME_NIL;
-       value = ao_scheme_arg(cons, 0);
-       switch (ao_scheme_poly_type(value)) {
+       switch (ao_scheme_poly_type(val)) {
        case AO_SCHEME_FLOAT:
-               f = ao_scheme_poly_float(value)->value;
+               f = ao_scheme_poly_float(val)->value;
                if (isinf(f))
                        return _ao_scheme_bool_true;
        }
@@ -137,12 +150,12 @@ ao_scheme_do_infinitep(struct ao_scheme_cons *cons)
 ao_poly
 ao_scheme_do_sqrt(struct ao_scheme_cons *cons)
 {
-       ao_poly value;
+       float   f;
 
-       if (!ao_scheme_check_argc(_ao_scheme_atom_sqrt, cons, 1, 1))
+       if (!ao_scheme_parse_args(_ao_scheme_atom_sqrt, cons,
+                                 AO_SCHEME_FLOAT, &f,
+                                 AO_SCHEME_ARG_END))
                return AO_SCHEME_NIL;
-       value = ao_scheme_arg(cons, 0);
-       if (!ao_scheme_number_typep(ao_scheme_poly_type(value)))
-               return ao_scheme_error(AO_SCHEME_INVALID, "%s: non-numeric", ao_scheme_poly_atom(_ao_scheme_atom_sqrt)->name);
-       return ao_scheme_float_get(sqrtf(ao_scheme_poly_number(value)));
+       return ao_scheme_float_get(sqrtf(f));
 }
+#endif