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/* n_6.t: #include directive. */
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/* 6.1: Header-name quoted by " and " as well as by < and > can include
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standard headers. */
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/* Note: Standard headers can be included any times. */
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#include "ctype.h"
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#include <ctype.h>
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/* 6.2: Macro is allowed in #include line. */
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#define HEADER "header.h"
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/* Before file inclusion: #include "header.h" */
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#include HEADER
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/* abc */
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MACRO_abc
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/* 6.3: With macro nonsence but legal. */
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#undef MACRO_abc
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#define ZERO_TOKEN
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#include ZERO_TOKEN HEADER ZERO_TOKEN
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/* abc */
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MACRO_abc
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