Fix a crasher found by libFuzzer
llvm-svn: 245849
diff --git a/libcxx/test/std/re/re.alg/re.alg.search/grep.pass.cpp b/libcxx/test/std/re/re.alg/re.alg.search/grep.pass.cpp
index 113243e..fbeddd0 100644
--- a/libcxx/test/std/re/re.alg/re.alg.search/grep.pass.cpp
+++ b/libcxx/test/std/re/re.alg/re.alg.search/grep.pass.cpp
@@ -21,6 +21,28 @@
#include "test_iterators.h"
+extern "C" void LLVMFuzzerTestOneInput(const char *data)
+{
+ size_t size = strlen(data);
+ if (size > 0)
+ {
+ try
+ {
+ std::regex::flag_type flag = std::regex_constants::grep;
+ std::string s((const char *)data, size);
+ std::regex re(s, flag);
+ std::regex_match(s, re);
+ }
+ catch (std::regex_error &ex) {}
+ }
+}
+
+
+void fuzz_tests() // patterns that the fuzzer has found
+{
+ LLVMFuzzerTestOneInput(R"XX(Õ)_%()()((\8'_%()_%()_%()_%(()_%()_%()_%(.t;)()¥f()_%()(.)_%;)()!¥f(((()()XX");
+}
+
int main()
{
{
@@ -55,4 +77,5 @@
assert(m.position(0) == 0);
assert(m.str(0) == "");
}
+ fuzz_tests();
}