32 lines
800 B
C++
32 lines
800 B
C++
#include <luna/Alloc.h>
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#include <luna/Format.h>
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#include <luna/Result.h>
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#include <luna/ScopeGuard.h>
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#include <luna/Units.h>
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Result<usize> to_dynamic_unit_cstr(usize value, char* buffer, usize max)
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{
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if (value < 1024) { return string_format(buffer, max, "%u bytes", value); }
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const char* unit_prefixes = "KMGTPE";
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while (value > (1024 * 1024))
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{
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value /= 1024;
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unit_prefixes++;
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}
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return string_format(buffer, max, "%u.%u %ciB", value / 1024, (value % 1024) / 103, *unit_prefixes);
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}
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Result<OwnedStringView> to_dynamic_unit(usize value)
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{
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char* buf = TRY(make_array<char>(64));
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auto guard = make_scope_guard([&] { destroy_array(buf); });
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TRY(to_dynamic_unit_cstr(value, buf, 64));
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guard.deactivate();
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return OwnedStringView{buf};
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} |