30 lines
648 B
V
30 lines
648 B
V
import os
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import io
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fn read_file(file string, cap int) []string {
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mut lines := []string{}
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mut f := os.open(file) or { panic(err) }
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defer {
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f.close()
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}
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mut r := io.new_buffered_reader(reader: io.make_reader(f), cap: cap)
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for {
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l := r.read_line() or { break }
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lines << l
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// println('Line: $l')
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}
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assert lines.len > 0
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assert r.end_of_stream == true
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println('------------------------------------------------ cap: ${cap:6}; read: ${lines.len:3} lines')
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return lines
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}
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fn test_file_reader() {
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for cap := 1; cap <= 10000; cap += 256 {
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lines := read_file(@FILE, cap)
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assert lines.last() == '// my last line'
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}
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}
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// my last line
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