36 lines
797 B
C
36 lines
797 B
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 sign.c
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* @brief Implements the OP_SIGN opcode returning -1, 0, or 1.
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*/
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case OP_SIGN: {
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Value v = pop_value(vm);
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int out = 0;
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if (v.type == VAL_INT) {
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out = (v.i > 0) - (v.i < 0);
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} else if (v.type == VAL_FLOAT) {
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if (v.d > 0.0)
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out = 1;
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else if (v.d < 0.0)
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out = -1;
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else
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out = 0;
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} else {
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fprintf(stderr, "Runtime type error: SIGN expects number, got %s\n", value_type_name(v.type));
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exit(1);
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}
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free_value(v);
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push_value(vm, make_int(out));
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break;
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}
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