Question

Here我向Android程序寻求帮助，该程序在insert（）崩溃到unordered_set时崩溃。我的想法是用g ++而不是clang编译该源代码（这是android开发唯一受支持的编译器）。也许该程序在用g ++编译时可以工作... 但是由于g++ -std=gnu++17 hiddenapi.cc > hiddenapi.log 2>&1，我遇到了无法修复的错误，因为我从未见过：

In file included from dex_file.h:32:0,
                 from compact_dex_file.h:21,
                 from dex_file-inl.h:23,
                 from hiddenapi.cc:27:
hidden_api_access_flags.h:106:40: error: ‘constexpr int art::CTZ(T) [with T = unsigned int]’ called in a constant expression
   static const int kAccFlagsShift = CTZ(kAccHiddenApiBits);
                                     ~~~^~~~~~~~~~~~~~~~~~~
In file included from leb128.h:24:0,
                 from dex_file-inl.h:21,
                 from hiddenapi.cc:27:
bit_utils.h:68:15: note: ‘constexpr int art::CTZ(T) [with T = unsigned int]’ is not usable as a constexpr function because:
 constexpr int CTZ(T x) {
               ^~~
In file included from casts.h:27:0,
                 from dex_file-inl.h:20,
                 from hiddenapi.cc:27:
alogging.h:285:39: error: call to non-constexpr function ‘std::basic_ostream<char, _Traits>& std::operator<<(std::basic_ostream<char, _Traits>&, const char*) [with _Traits = std::char_traits<char>]’
   ::android::base::LogMessage(__FILE__, __LINE__, ::android::base::DEFAULT,                    \
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                               ::android::base::FATAL, _LOG_TAG_INTERNAL, -1)                   \
                               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
           .stream()                                                                            \
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       << "Check failed: " << #LHS << " " << #OP << " " << #RHS << " (" #LHS "=" << _values.lhs \
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       << ", " #RHS "=" << _values.rhs << ") "
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
alogging.h:295:24: note: in expansion of macro ‘CHECK_OP’
 #define CHECK_NE(x, y) CHECK_OP(x, y, != )
                        ^~~~~~~~
alogging.h:356:40: note: in expansion of macro ‘CHECK_NE’
   if (::android::base::kEnableDChecks) CHECK_NE(x, y)
                                        ^~~~~~~~
bit_utils.h:74:3: note: in expansion of macro ‘DCHECK_NE’
   DCHECK_NE(x, static_cast<T>(0));
   ^~~~~~~~~

在我的Linux PC上编译复杂的android源代码时出错

0 个答案: