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  1. #include <cxxabi.h>
  2. #include <string>
  3. #include <typeinfo>
  4. #include <cassert>
  5. #include <cstdlib>
  6. #include <iostream>
  7.  
  8. const std::string demangle(const char* const mangledTypeName) {
  9.    int resultStatus = -4;
  10.    const char* const result = abi::__cxa_demangle( mangledTypeName, 0, 0, &resultStatus );
  11.    std::string demangledTypeName;
  12.    const bool noError = (0 == resultStatus);
  13.    const bool demangledSuccess = (noError && result != 0);
  14.    assert(demangledSuccess);
  15.    demangledTypeName = (demangledSuccess ? result : "Unknown type.");
  16.    free(const_cast<char*>(result));
  17.    return demangledTypeName;
  18. }
  19.  
  20. const std::string demangle(const std::string& mangledTypeName) {
  21.    return demangle(mangledTypeName.c_str());
  22. }
  23.  
  24. const std::string demangledNameOfType(const std::type_info& type_id) {
  25.    return demangle(type_id.name());
  26. }
  27.  
  28. #define DEMANGLED_NAME_OF_TYPE(TypeOrValue) (demangledNameOfType(typeid(TypeOrValue)))
  29. #define PRINT_NAME_OF_TYPE(TypeOrValue) {std::cout<<DEMANGLED_NAME_OF_TYPE(TypeOrValue)<<std::endl;}
  30.  
  31.  
  32. int main()
  33. {
  34. 	PRINT_NAME_OF_TYPE(1)
  35. 	PRINT_NAME_OF_TYPE(1.)
  36. 	PRINT_NAME_OF_TYPE(1.f)
  37. 	PRINT_NAME_OF_TYPE(1L)
  38. 	PRINT_NAME_OF_TYPE(1LL)
  39. 	PRINT_NAME_OF_TYPE(1U)
  40. 	PRINT_NAME_OF_TYPE("1")
  41. }
  42.  
Success #stdin #stdout 0s 3432KB
comments (?)
stdin 
Standard input is empty
stdout 
int
double
float
long
long long
unsigned int
char [2]
https://ideone.com/P1J6xl
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
secret

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