Bruce Hill
147e0f0269
changed T(), T, T_t, T_s type names to T(), T$$info, T$$type, T$$struct for unambiguity
65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
// The logic for unsigned bytes
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#include <stdbool.h>
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#include <stdint.h>
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#include "bytes.h"
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#include "stdlib.h"
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#include "text.h"
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#include "util.h"
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public const Byte_t Byte$min = 0;
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public const Byte_t Byte$max = UINT8_MAX;
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PUREFUNC public Text_t Byte$as_text(const void *b, bool colorize, const TypeInfo_t*)
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{
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if (!b) return Text("Byte");
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return Text$format(colorize ? "\x1b[35m0x%02X\x1b[m" : "0x%02X", *(Byte_t*)b);
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}
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public Text_t Byte$hex(Byte_t byte, bool uppercase, bool prefix) {
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struct Text_s text = {.tag=TEXT_ASCII};
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text.ascii = GC_MALLOC_ATOMIC(8);
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if (prefix && uppercase)
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text.length = (int64_t)snprintf((char*)text.ascii, 8, "0x%02X", byte);
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else if (prefix && !uppercase)
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text.length = (int64_t)snprintf((char*)text.ascii, 8, "0x%02x", byte);
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else if (!prefix && uppercase)
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text.length = (int64_t)snprintf((char*)text.ascii, 8, "%02X", byte);
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else if (!prefix && !uppercase)
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text.length = (int64_t)snprintf((char*)text.ascii, 8, "%02x", byte);
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return text;
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}
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public PUREFUNC Byte_t Byte$from_int(Int_t i, bool truncate) {
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if unlikely (truncate && Int$compare_value(i, I_small(0xFF)) > 0)
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fail("This value is too large to convert to a byte without truncation: %k", (Text_t[1]){Int$value_as_text(i)});
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else if unlikely (truncate && Int$compare_value(i, I_small(0)) < 0)
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fail("Negative values can't be converted to bytes: %k", (Text_t[1]){Int$value_as_text(i)});
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return (i.small != 0);
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}
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public PUREFUNC Byte_t Byte$from_int64(Int64_t i, bool truncate) {
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if unlikely (truncate && i != (Int64_t)(Byte_t)i)
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fail("This value can't be converted to a byte without truncation: %ld", i);
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return (Byte_t)i;
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}
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public PUREFUNC Byte_t Byte$from_int32(Int32_t i, bool truncate) {
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if unlikely (truncate && i != (Int32_t)(Byte_t)i)
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fail("This value can't be converted to a byte without truncation: %d", i);
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return (Byte_t)i;
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}
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public PUREFUNC Byte_t Byte$from_int16(Int16_t i, bool truncate) {
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if unlikely (truncate && i != (Int16_t)(Byte_t)i)
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fail("This value can't be converted to a byte without truncation: %d", i);
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return (Byte_t)i;
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}
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public const TypeInfo_t Byte$info = {
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.size=sizeof(Byte_t),
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.align=__alignof__(Byte_t),
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.metamethods={
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.as_text=Byte$as_text,
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},
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};
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// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0
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