X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fscheme%2Fao_scheme_float.c;fp=src%2Fscheme%2Fao_scheme_float.c;h=0000000000000000000000000000000000000000;hp=483035f9cb205f1bb514c737184cb9e5e3569186;hb=f26cc1a677f577da533425a15485fcaa24626b23;hpb=4b52fc6eea9a478cb3dd42dcd32c92838df39734 diff --git a/src/scheme/ao_scheme_float.c b/src/scheme/ao_scheme_float.c deleted file mode 100644 index 483035f9..00000000 --- a/src/scheme/ao_scheme_float.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * Copyright © 2017 Keith Packard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - */ - -#include "ao_scheme.h" -#include - -#ifdef AO_SCHEME_FEATURE_FLOAT - -static void float_mark(void *addr) -{ - (void) addr; -} - -static int float_size(void *addr) -{ - if (!addr) - return 0; - return sizeof (struct ao_scheme_float); -} - -static void float_move(void *addr) -{ - (void) addr; -} - -const struct ao_scheme_type ao_scheme_float_type = { - .mark = float_mark, - .size = float_size, - .move = float_move, - .name = "float", -}; - -#ifndef FLOAT_FORMAT -#define FLOAT_FORMAT "%g" -#endif - -void -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)) - fputs("+nan.0", out); - else if (isinff(v)) { - if (v < 0) - putc('-', out); - else - putc('+', out); - fputs("inf.0", out); - } else - fprintf(out, FLOAT_FORMAT, v); -} - -float -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_FLOAT: - return ao_scheme_poly_float(p)->value; - } - } - return NAN; -} - -ao_poly -ao_scheme_float_get(float value) -{ - struct ao_scheme_float *f; - - f = ao_scheme_alloc(sizeof (struct ao_scheme_float)); - f->type = AO_SCHEME_FLOAT; - f->value = value; - return ao_scheme_float_poly(f); -} - -ao_poly -ao_scheme_do_inexactp(struct ao_scheme_cons *cons) -{ - 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(val) == AO_SCHEME_FLOAT) - return _ao_scheme_bool_true; - return _ao_scheme_bool_false; -} - -ao_poly -ao_scheme_do_finitep(struct ao_scheme_cons *cons) -{ - ao_poly val; - float f; - - if (!ao_scheme_parse_args(_ao_scheme_atom_inexact3f, cons, - AO_SCHEME_POLY, &val, - AO_SCHEME_ARG_END)) - return AO_SCHEME_NIL; - 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(val)->value; - if (!isnan(f) && !isinf(f)) - return _ao_scheme_bool_true; - } - return _ao_scheme_bool_false; -} - -ao_poly -ao_scheme_do_infinitep(struct ao_scheme_cons *cons) -{ - ao_poly val; - float f; - - if (!ao_scheme_parse_args(_ao_scheme_atom_inexact3f, cons, - AO_SCHEME_POLY, &val, - AO_SCHEME_ARG_END)) - return AO_SCHEME_NIL; - switch (ao_scheme_poly_type(val)) { - case AO_SCHEME_FLOAT: - f = ao_scheme_poly_float(val)->value; - if (isinf(f)) - return _ao_scheme_bool_true; - } - return _ao_scheme_bool_false; -} - -ao_poly -ao_scheme_do_sqrt(struct ao_scheme_cons *cons) -{ - float f; - - if (!ao_scheme_parse_args(_ao_scheme_atom_sqrt, cons, - AO_SCHEME_FLOAT, &f, - AO_SCHEME_ARG_END)) - return AO_SCHEME_NIL; - return ao_scheme_float_get(sqrtf(f)); -} -#endif