trap.h

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// trap.h - written and placed in public domain by Jeffrey Walton.
 
 
#ifndef CRYPTOPP_TRAP_H
#define CRYPTOPP_TRAP_H
 
#include "config.h"
 
#if defined(CRYPTOPP_DEBUG)
#  include <iostream>
#  include <sstream>
#  if defined(UNIX_SIGNALS_AVAILABLE)
#    include "ossig.h"
#  elif defined(CRYPTOPP_WIN32_AVAILABLE) && !defined(__CYGWIN__)
     extern "C" __declspec(dllimport) void __stdcall DebugBreak();
     extern "C" __declspec(dllimport)  int __stdcall IsDebuggerPresent();
#  endif
#endif // CRYPTOPP_DEBUG
 
// ************** run-time assertion ***************
 
#if defined(CRYPTOPP_DOXYGEN_PROCESSING)
#  define CRYPTOPP_ASSERT(exp) { ... }
#endif
 
#if defined(CRYPTOPP_DEBUG)
# if defined(UNIX_SIGNALS_AVAILABLE) || defined(__CYGWIN__)
#  define CRYPTOPP_ASSERT(exp) {                                  \
    if (!(exp)) {                                                 \
      std::ostringstream oss;                                     \
      oss << "Assertion failed: " << __FILE__ << "("              \
          << __LINE__ << "): " << __func__                        \
          << std::endl;                                           \
      std::cout << std::flush;                                    \
      std::cerr << oss.str();                                     \
      raise(SIGTRAP);                                             \
    }                                                             \
  }
# elif CRYPTOPP_DEBUG && defined(CRYPTOPP_WIN32_AVAILABLE)
#  define CRYPTOPP_ASSERT(exp) {                                  \
    if (!(exp)) {                                                 \
      std::ostringstream oss;                                     \
      oss << "Assertion failed: " << __FILE__ << "("              \
          << __LINE__ << "): " << __FUNCTION__                    \
          << std::endl;                                           \
      std::cout << std::flush;                                    \
      std::cerr << oss.str();                                     \
      if (IsDebuggerPresent()) {DebugBreak();}                    \
    }                                                             \
  }
# endif // Unix or Windows
#endif  // CRYPTOPP_DEBUG
 
// Remove CRYPTOPP_ASSERT in non-debug builds.
#ifndef CRYPTOPP_ASSERT
#  define CRYPTOPP_ASSERT(exp) (void)0
#endif
 
NAMESPACE_BEGIN(CryptoPP)
 
// ************** SIGTRAP handler ***************
 
#if (CRYPTOPP_DEBUG && defined(UNIX_SIGNALS_AVAILABLE)) || defined(CRYPTOPP_DOXYGEN_PROCESSING)
 
#if defined(CRYPTOPP_DOXYGEN_PROCESSING)
class DebugTrapHandler : public SignalHandler<SIGTRAP, false> { };
#else
typedef SignalHandler<SIGTRAP, false> DebugTrapHandler;
#endif
 
#endif  // Linux, Unix and Documentation
 
NAMESPACE_END
 
#endif // CRYPTOPP_TRAP_H