35 lines
969 B
Zig
35 lines
969 B
Zig
// Ported from:
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//
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// https://github.com/llvm/llvm-project/commit/d674d96bc56c0f377879d01c9d8dfdaaa7859cdb/compiler-rt/test/builtins/Unit/divdf3_test.c
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const __divdf3 = @import("divdf3.zig").__divdf3;
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const testing = @import("std").testing;
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fn compareResultD(result: f64, expected: u64) bool {
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const rep = @bitCast(u64, result);
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if (rep == expected) {
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return true;
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}
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// test other possible NaN representation(signal NaN)
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else if (expected == 0x7ff8000000000000) {
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if ((rep & 0x7ff0000000000000) == 0x7ff0000000000000 and
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(rep & 0xfffffffffffff) > 0)
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{
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return true;
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}
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}
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return false;
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}
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fn test__divdf3(a: f64, b: f64, expected: u64) void {
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const x = __divdf3(a, b);
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const ret = compareResultD(x, expected);
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testing.expect(ret == true);
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}
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test "divdf3" {
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test__divdf3(1.0, 3.0, 0x3fd5555555555555);
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test__divdf3(4.450147717014403e-308, 2.0, 0x10000000000000);
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}
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