20 lines
514 B
C++
20 lines
514 B
C++
// Copyright 2024 Andrey Semashev
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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// See library home page at http://www.boost.org/libs/filesystem
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#include "platform_config.hpp"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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int main()
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{
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int fd = open("file.txt", O_CREAT | O_TRUNC | O_WRONLY, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH);
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int err = fallocate(fd, FALLOC_FL_KEEP_SIZE, 0, 4096);
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return err != 0;
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}
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