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- from stdc import *
- assert sizeof(Int8) == sizeof(UInt8) == 1
- assert sizeof(Int16) == sizeof(UInt16) == 2
- assert sizeof(Int32) == sizeof(UInt32) == 4
- assert sizeof(Int64) == sizeof(UInt64) == 8
- assert sizeof(Float) == 4
- assert sizeof(Double) == 8
- assert sizeof(Bool) == 1
- assert sizeof(Pointer) in (4, 8)
- x = Int32(42)
- assert x.value == 42
- x.value = 100
- assert x.value == 100
- Int32.read(addressof(x), 0) == 100
- Int32.write(addressof(x), 0, 200)
- assert x.value == 200
- # test array
- arr = Int32.array(3)
- arr[0] = 10
- arr[1] = 20
- arr[2] = 30
- assert arr[0] == 10
- assert arr[1] == 20
- assert arr[2] == 30
- # test malloc, memset, memcpy
- p = malloc(3 * sizeof(Int32))
- memset(p, 0, 3 * sizeof(Int32))
- memcpy(p, addressof(arr), 3 * sizeof(Int32))
- for i in range(3):
- assert arr[i] == Int32.read(p, i)
- assert memcmp(p, addressof(arr), 3 * sizeof(Int32)) == 0
- # test free
- free(p)
- # test float
- y = Double.array(3)
- y[0] = 1.1
- y[1] = 2.2
- y[2] = 3.3
- assert Double.read(addressof(y), 0) == 1.1
- assert Double.read(addressof(y), 1) == 2.2
- assert Double.read(addressof(y), 2) == 3.3
- # test read_cstr and write_cstr
- a = Char.array(20)
- write_cstr(addressof(a), "hello")
- assert read_cstr(addressof(a)) == "hello"
- a[3] = 0
- assert read_cstr(addressof(a)) == "hel"
- # test read_bytes and write_bytes
- assert read_bytes(addressof(a), 5) == b'hel\x00o'
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