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	merge-benchmark-func.py - libzahl - big integer library
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	---
	merge-benchmark-func.py (1500B)
	---
	1 #!/usr/bin/env python3
	2 # See LICENSE file for copyright and license details.
	3
	4
	5 # Invoke using `env SELECT_MIN=` to select the minimum value,
	6 # rather than concatenate. This applies to 1-dimensional data only.
	7
	8
	9 import sys, os
	10
	11 line_count = None
	12 files = []
	13
	14 for path in sys.argv[1:]:
	15 with open(path, 'rb') as file:
	16 data = file.read()
	17 data = data.decode('utf-8', 'strict')
	18 if data[-1] == '\n':
	19 data = data[:-1]
	20 data = data.split('\n')
	21 if line_count is None:
	22 line_count = len(data)
	23 elif len(data) != line_count:
	24 print('%s: line count mismatch' % sys.argv[0], file = sys.stderr)
	25 sys.exit(1)
	26 files.append(data)
	27
	28 dim = int(files[0][1])
	29 skip = 1 + dim
	30 for i in range(skip):
	31 print(files[0][i])
	32
	33 if dim > 1:
	34 for i in range(skip, line_count):
	35 best_nsec = None
	36 best_line = None
	37 for lines in files:
	38 line = lines[i]
	39 nsec = int(line)
	40 if best_nsec is None or nsec < best_nsec:
	41 best_nsec, best_line = nsec, line
	42 print(best_line)
	43 elif 'SELECT_MIN' not in os.environ:
	44 for lines in files:
	45 for i in range(skip, line_count):
	46 print(lines[i])
	47 else:
	48 best_nsec = None
	49 best_line = None
	50 for lines in files:
	51 for i in range(skip, line_count):
	52 line = lines[i]
	53 nsec = int(line)
	54 if best_nsec is None or nsec < best_nsec:
	55 best_nsec, best_line = nsec, line
	56 print(best_line)