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56 lines
1.8 KiB
Plaintext
56 lines
1.8 KiB
Plaintext
// Copyright (c) 2021-2024 Christoffer Lerno. All rights reserved.
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// Use of this source code is governed by the MIT license
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// a copy of which can be found in the LICENSE_STDLIB file.
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module std::core::cinterop;
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const C_INT_SIZE = $$C_INT_SIZE;
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const C_LONG_SIZE = $$C_LONG_SIZE;
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const C_SHORT_SIZE = $$C_SHORT_SIZE;
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const C_LONG_LONG_SIZE = $$C_LONG_LONG_SIZE;
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$assert C_SHORT_SIZE < 32;
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$assert C_INT_SIZE < 128;
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$assert C_LONG_SIZE < 128;
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$assert C_LONG_LONG_SIZE <= 128;
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$assert C_SHORT_SIZE <= C_INT_SIZE;
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$assert C_INT_SIZE <= C_LONG_SIZE;
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$assert C_LONG_SIZE <= C_LONG_LONG_SIZE;
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def CShort = $typefrom(signed_int_from_bitsize($$C_SHORT_SIZE));
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def CUShort = $typefrom(unsigned_int_from_bitsize($$C_SHORT_SIZE));
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def CInt = $typefrom(signed_int_from_bitsize($$C_INT_SIZE));
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def CUInt = $typefrom(unsigned_int_from_bitsize($$C_INT_SIZE));
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def CLong = $typefrom(signed_int_from_bitsize($$C_LONG_SIZE));
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def CULong = $typefrom(unsigned_int_from_bitsize($$C_LONG_SIZE));
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def CLongLong = $typefrom(signed_int_from_bitsize($$C_LONG_LONG_SIZE));
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def CULongLong = $typefrom(unsigned_int_from_bitsize($$C_LONG_LONG_SIZE));
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def CSChar = ichar;
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def CUChar = char;
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def CChar = $typefrom($$C_CHAR_IS_SIGNED ? ichar.typeid : char.typeid);
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// Helper macros
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macro typeid signed_int_from_bitsize(usz $bitsize) @private
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{
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$switch ($bitsize)
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$case 128: return int128.typeid;
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$case 64: return long.typeid;
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$case 32: return int.typeid;
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$case 16: return short.typeid;
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$case 8: return ichar.typeid;
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$default: $error("Invalid bitsize");
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$endswitch
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}
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macro typeid unsigned_int_from_bitsize(usz $bitsize) @private
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{
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$switch ($bitsize)
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$case 128: return uint128.typeid;
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$case 64: return ulong.typeid;
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$case 32: return uint.typeid;
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$case 16: return ushort.typeid;
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$case 8: return char.typeid;
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$default: $error("Invalid bitsize");
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$endswitch
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}
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