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48 lines
1.5 KiB
Plaintext
48 lines
1.5 KiB
Plaintext
////
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Copyright 2008 Jurko Gospodnetic
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Copyright 2025 René Ferdinand Rivera Morell
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE.txt or https://www.bfgroup.xyz/b2/LICENSE.txt)
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////
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= Hello
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This example shows a very basic Boost Build project set up so it compiles a
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single executable which makes use of contracts from a single source file:
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.`hello.cpp`
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[source,cpp]
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----
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include::../../example/contracts/hello.cpp[tag=source]
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----
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Our `jamroot.jam` is minimal and only specifies one `exe` target for the
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program:
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.`jamroot.jam`
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[source,jam]
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----
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include::jamroot.jam[]
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----
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Building the example yields:
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[source,bash]
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----
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> cd /example/hello
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> b2
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...found 12 targets...
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...updating 8 targets...
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clang-linux.compile.c++ bin/clang-linux-22.0~contracts/debug/contracts-on-enforce/cxxstd-23-iso/stdlib-libc++/hello.o
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clang-linux.link bin/clang-linux-22.0~contracts/debug/contracts-on-enforce/cxxstd-23-iso/stdlib-libc++/hello
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...updated 8 targets...
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> LD_LIBRARY_PATH=/opt/clang-ericwf-contracts-trunk/lib/x86_64-unknown-linux-gnu/ bin/clang-linux-22.0~contracts/debug/contracts-on-enforce/cxxstd-23-iso/stdlib-libc++/hello
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Hello!
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hello.cpp:11: pre(x != 0) failed
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libc++abi: terminating
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Aborted (core dumped) LD_LIBRARY_PATH=/opt/clang-ericwf-contracts-trunk/lib/x86_64-unknown-linux-gnu/ bin/clang-linux-22.0~contracts/debug/contracts-on-enforce/cxxstd-23-iso/stdlib-libc++/hello
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----
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NOTE: The actual paths will depend on your configuration.
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