48 lines
1.0 KiB
Python
48 lines
1.0 KiB
Python
# Test creating small integers without heap allocation in nan-boxing mode.
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try:
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import micropython
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except ImportError:
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print("SKIP")
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raise SystemExit
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try:
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# Test for nan-box build by allocating a float while heap is locked.
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# This should pass on nan-box builds.
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micropython.heap_lock()
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float(123)
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micropython.heap_unlock()
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except:
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micropython.heap_unlock()
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print("SKIP")
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raise SystemExit
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# Check that nan-boxing uses 64-bit floats (eg it's not object representation C).
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if float("1e100") == float("inf"):
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print("SKIP")
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raise SystemExit
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micropython.heap_lock()
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print(int("0x80000000"))
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micropython.heap_unlock()
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# This is the most positive small integer.
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micropython.heap_lock()
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print(int("0x3fffffffffff"))
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micropython.heap_unlock()
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# This is the most negative small integer.
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micropython.heap_lock()
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print(int("-0x3fffffffffff") - 1)
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micropython.heap_unlock()
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x = 1
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micropython.heap_lock()
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print((x << 31) + 1)
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micropython.heap_unlock()
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x = 1
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micropython.heap_lock()
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print((x << 45) + 1)
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micropython.heap_unlock()
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