43 lines
1 KiB
C
43 lines
1 KiB
C
/**
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* This file is part of the Fun programming language.
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* https://fun-lang.xyz/
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*
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* Copyright 2026 Johannes Findeisen <you@hanez.org>
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* Licensed under the terms of the Apache-2.0 license.
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* https://opensource.org/license/apache-2-0
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*
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* Added: 2026-01-03
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*/
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/**
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* @file round.c
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* @brief Implements the OP_ROUND opcode using C99 math.h round().
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* C99 round() rounds half away from zero.
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*/
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#include <math.h>
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case OP_ROUND: {
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Value v = pop_value(vm);
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if (v.type == VAL_INT) {
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push_value(vm, make_int(v.i));
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free_value(v);
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} else if (v.type == VAL_FLOAT) {
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double r = round(v.d);
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if (r >= (double)INT64_MIN && r <= (double)INT64_MAX) {
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int64_t ii = (int64_t)r;
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if ((double)ii == r) {
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push_value(vm, make_int(ii));
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} else {
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push_value(vm, make_float(r));
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}
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} else {
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push_value(vm, make_float(r));
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}
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free_value(v);
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} else {
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fprintf(stderr, "Runtime type error: ROUND expects number, got %s\n", value_type_name(v.type));
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exit(1);
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}
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break;
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}
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