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https://github.com/Mercury-Language/mercury.git
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85a1eb5cf2
library/bitmap.m:
Add functions for accessing bytes in bitmaps as uint8 values.
Add predicates for setting bytes in bitmaps as uint8 values.
Add a det version of from_string/1.
Fix a typo in the description of is_empty/1.
tests/hard_coded/bitmap_bytes.{m,exp}:
Extend this test to cover uint8 access to bitmaps.
NEWS:
Announce the new predicates and functions.
56 lines
2.1 KiB
Plaintext
56 lines
2.1 KiB
Plaintext
Bitmap:
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^ byte(-1): bitmap.byte: byte index -1 is out of bounds [0, 0).
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get_uint(-1): bitmap.get_uint8: byte index -1 is out of bounds [0, 0).
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^ byte(0): bitmap.byte: byte index 0 is out of bounds [0, 0).
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get_uint(0): bitmap.get_uint8: byte index 0 is out of bounds [0, 0).
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^ byte(1): bitmap.byte: byte index 1 is out of bounds [0, 0).
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get_uint(1): bitmap.get_uint8: byte index 1 is out of bounds [0, 0).
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Bitmap: 00000000.00000000.00000000
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^ byte(-1): bitmap.byte: byte index -1 is out of bounds [0, 3).
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get_uint(-1): bitmap.get_uint8: byte index -1 is out of bounds [0, 3).
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^ byte(0): 0
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get_uint(0): 0
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^ byte(1): 0
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get_uint(1): 0
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^ byte(2): 0
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get_uint(2): 0
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^ byte(3): bitmap.byte: byte index 3 is out of bounds [0, 3).
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get_uint(3): bitmap.get_uint8: byte index 3 is out of bounds [0, 3).
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^ byte(4): bitmap.byte: byte index 4 is out of bounds [0, 3).
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get_uint(4): bitmap.get_uint8: byte index 4 is out of bounds [0, 3).
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Bitmap: 00000000.00000000.0
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^ byte(-1): bitmap.byte: byte index -1 is out of bounds [0, 2).
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get_uint(-1): bitmap.get_uint8: byte index -1 is out of bounds [0, 2).
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^ byte(0): 0
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get_uint(0): 0
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^ byte(1): 0
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get_uint(1): 0
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^ byte(2): bitmap.byte: byte index 2 is out of bounds [0, 2).
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get_uint(2): bitmap.get_uint8: byte index 2 is out of bounds [0, 2).
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^ byte(3): bitmap.byte: byte index 3 is out of bounds [0, 2).
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get_uint(3): bitmap.get_uint8: byte index 3 is out of bounds [0, 2).
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Bitmap: 11111111.00000000.11111111
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^ byte(-1): bitmap.byte: byte index -1 is out of bounds [0, 3).
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get_uint(-1): bitmap.get_uint8: byte index -1 is out of bounds [0, 3).
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^ byte(0): 255
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get_uint(0): 255
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^ byte(1): 0
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get_uint(1): 0
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^ byte(2): 255
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get_uint(2): 255
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^ byte(3): bitmap.byte: byte index 3 is out of bounds [0, 3).
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get_uint(3): bitmap.get_uint8: byte index 3 is out of bounds [0, 3).
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Bitmap: 11110000.00001111
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^ byte(-1): bitmap.byte: byte index -1 is out of bounds [0, 2).
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get_uint(-1): bitmap.get_uint8: byte index -1 is out of bounds [0, 2).
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^ byte(0): 240
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get_uint(0): 240
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^ byte(1): 15
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get_uint(1): 15
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^ byte(2): bitmap.byte: byte index 2 is out of bounds [0, 2).
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get_uint(2): bitmap.get_uint8: byte index 2 is out of bounds [0, 2).
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