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view clang/test/Preprocessor/macro_fn_preexpand.c @ 176:de4ac79aef9d

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 17:13:11 +0900
parents 1d019706d866
children
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// RUN: %clang_cc1 %s -E | grep 'pre: 1 1 X'
// RUN: %clang_cc1 %s -E | grep 'nopre: 1A(X)'

/* Preexpansion of argument. */
#define A(X) 1 X
pre: A(A(X))

/* The ## operator disables preexpansion. */
#undef A
#define A(X) 1 ## X
nopre: A(A(X))