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e0fb4c29cb
@bitCast from integer NaN representation to float NaN resulted in changed bits in float. This only happened with signaled NaN. - added test for signaled NaN - added tests for quiet NaN (for completeness) closes #14198
19 lines
919 B
Zig
19 lines
919 B
Zig
const std = @import("std");
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const math = std.math;
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const mem = std.mem;
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const testing = std.testing;
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test "nan memory equality" {
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// signaled
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try testing.expect(mem.eql(u8, mem.asBytes(&math.nan_u16), mem.asBytes(&math.nan_f16)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.nan_u32), mem.asBytes(&math.nan_f32)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.nan_u64), mem.asBytes(&math.nan_f64)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.nan_u128), mem.asBytes(&math.nan_f128)));
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// quiet
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try testing.expect(mem.eql(u8, mem.asBytes(&math.qnan_u16), mem.asBytes(&math.qnan_f16)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.qnan_u32), mem.asBytes(&math.qnan_f32)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.qnan_u64), mem.asBytes(&math.qnan_f64)));
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try testing.expect(mem.eql(u8, mem.asBytes(&math.qnan_u128), mem.asBytes(&math.qnan_f128)));
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}
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