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cat <<'EOF' > header.h
int add(int a, int b) {
return a + b;
}
int printf(const char*, ...);
EOF
cat <<'EOF' > expected
8
EOF
test_diff <<'EOF'
#include "header.h"
int main() {
printf("%d\n", add(5, 3));
return 0;
}
EOF
mkdir -p foo
cat <<'EOF' > bar.h
#include "baz.h"
EOF
cat <<'EOF' > baz.h
#define A 123
EOF
cat <<'EOF' > foo/bar.h
#include "baz.h"
EOF
cat <<'EOF' > foo/baz.h
#define A 456
EOF
cat <<'EOF' > expected
123
456
EOF
test_diff <<'EOF'
int printf(const char*, ...);
int main() {
#include "bar.h"
printf("%d\n", A);
#undef A
#include "foo/bar.h"
printf("%d\n", A);
}
EOF
cat <<'EOF' > expected
12
EOF
cat <<'EOF' > math.h
int multiply(int a, int b) {
return a * b;
}
EOF
cat <<'EOF' > calc.h
#include "math.h"
int calculate(int x) {
return multiply(x, 2);
}
int printf(const char*, ...);
EOF
test_diff <<'EOF'
#include "calc.h"
int main() {
printf("%d\n", calculate(6));
return 0;
}
EOF
cat <<'EOF' > expected
42
EOF
cat <<'EOF' > header.h
#define A 42
EOF
test_diff <<'EOF'
#include "header.h"
int printf();
int main() {
printf("%d\n", A);
return 0;
}
EOF
cat <<'EOF' > expected
42
EOF
cat <<'EOF' > header.h
#ifndef HEADER_H
#define HEADER_H
int f() { return 42; }
#endif
EOF
test_diff <<'EOF'
#include "header.h"
#include "header.h"
#include "header.h"
int printf();
int main() {
printf("%d\n", HEADER_H HEADER_H HEADER_H f() HEADER_H HEADER_H HEADER_H);
return 0;
}
EOF
cat <<'EOF' > expected
main.c:1: cannot open include file: "nonexistent.h"
EOF
test_compile_error <<'EOF'
#include "nonexistent.h"
int main() {
return 0;
}
EOF
cat <<'EOF' > expected
include depth limit exceeded
EOF
# Create circular include files
cat <<'EOF' > a.h
#include "b.h"
int a() { return 1; }
EOF
cat <<'EOF' > b.h
#include "a.h"
int b() { return 2; }
EOF
test_compile_error <<'EOF'
#include "a.h"
int main() {
a() + b();
return 0;
}
EOF
cat <<'EOF' > expected
main.c:1: cannot open include file: "hoge.h"
EOF
test_compile_error <<'EOF'
#include "hoge.h"
EOF
cat <<'EOF' > expected
main.c:1: cannot resolve include file name: <hoge.h>
EOF
test_compile_error <<'EOF'
#include <hoge.h>
EOF
cat <<'EOF' > expected
42
EOF
test_exit_code 0 <<'EOF'
#ifdef FOO
#include FOO
#endif
int main() { 1 < 2; }
EOF
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