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TheRock/compiler/amd-llvm/clang/test/Preprocessor/macro_vaopt_p1042r1.cpp
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

37 lines
747 B
C++

RUN: %clang_cc1 -E %s -pedantic -std=c++2a | FileCheck -strict-whitespace %s
#define LPAREN() (
#define G(Q) 42
#define F1(R, X, ...) __VA_OPT__(G R X) )
1: int x = F1(LPAREN(), 0, <:-);
// CHECK: 1: int x = 42;
#define F2(...) f(0 __VA_OPT__(,) __VA_ARGS__)
#define EMP
2: F2(EMP)
// CHECK: 2: f(0 )
#define H3(X, ...) #__VA_OPT__(X##X X##X)
3: H3(, 0)
// CHECK: 3: ""
#define H4(X, ...) __VA_OPT__(a X ## X) ## b
4: H4(, 1)
// CHECK: 4: a b
#define H4B(X, ...) a ## __VA_OPT__(X ## X b)
4B: H4B(, 1)
// CHECK: 4B: a b
#define H5A(...) __VA_OPT__()/**/__VA_OPT__()
#define H5B(X) a ## X ## b
#define H5C(X) H5B(X)
5: H5C(H5A())
// CHECK: 5: ab
namespace GH60268 {
#define H6(X, ...) __VA_OPT__(a ## X) ## b
6: H6(, 1);
// CHECK: 6: ab
}