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This subdirectory contains infrastructure which is not put into
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installed libraries, but may be linked into programs (installed or
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not) and tests.
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# Error-checking wrappers
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These wrappers test for error return codes an terminate the process on
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error. They are declared in these header files:
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* support.h
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* xsignal.h
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* xthread.h
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In general, new wrappers should be added to support.h if possible.
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However, support.h must remain fully compatible with C90 and therefore
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cannot include headers which use identifers not reserved in C90. If
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the wrappers need additional types, additional headers such as
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signal.h need to be introduced.
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# Test framework
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The test framework provides a main program for tests, including a
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timeout for hanging tests. See README-testing.c for a minimal
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example, and test-driver.c for details how to use it. The following
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header files provide related declarations:
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* check.h
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* temp_file.h
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* test-driver.h
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