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Numeric Casting Operations #361
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remove out of range casts as in C these are UB
enricozb
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@@ -4,6 +4,6 @@ expression: rust_output | |||
input_file: tests/programs/empty.hvm | |||
--- | |||
exit status: 101 | |||
thread 'main' panicked at src/ast.rs:508:41: | |||
thread 'main' panicked at src/ast.rs:527:41: |
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off-topic but this diff is pretty annoying; we should figure out a better way to test this
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Adds support for numeric casting operations,
[u24]
,[i24]
,[f24]
.Fixes #322.
Casts are always defined, and spiritually follow rusts numeric casting semantics:
i24 <-> u24
is just reinterpretation of bits.f24 -> i24
orf24 -> u24
casts to the "closest" integer representing this float, saturating if out of range and0
ifNaN
.i24 -> f24
oru24 -> f24
casts to the "closest" float representing this integer.