(C++) TR1

June 10, 2019 · View on GitHub

 

 

 

 

 

(C++) TR1 TR1

 

TR1 (an abbreviation of 'Technical Report 1') is a document proposing library extensions to the C++98 library.

 

TR2 will be a document proposing library extensions to the C++11 library.

 

 

 

 

 

List of TR1 header files

 

Found in '/usr/include/c++/4.7/tr1':

 

 

 

 

 

 

Example

 

 

 

 

 

 

Technical facts

 

Application type(s)

Operating system(s) or programming environment(s)

IDE(s):

Project type:

C++ standard:

Compiler(s):

Libraries used:

  • STL STL: GNU ISO C++ Library, version 4.7.2

 

 

 

 

 

Qt project file: CppTr1.pro

 

TEMPLATE = app CONFIG += console CONFIG -= qt SOURCES += main.cpp

 

 

 

 

 

main.cpp

 

#include <cassert> #ifdef WOULD_TR1_REGEX_BE_COMPLETE #include <tr1/regex> //std::tr1::regex #endif #include <tr1/array> //std::tr1::array #include <tr1/memory> //std::tr1::shared_ptr int main() {   //std::tr1::array   {     //const std::tr1::array<int,3> w = {{ 0,1 }}; //Does compile: too few elements is not checked in assignment     //const std::tr1::array<int,3> x = {{ 0,1,2,3 }}; //Does not compile: too many elements is checked in assignment     const std::tr1::array<int,3> v = {{ 0,1,2 }}; //Note the double braces     //static_assert(v.size() == 3,""); //Not allowed     assert(v[1] == 1);   }   //std::tr1::regex   {     #ifdef WOULD_TR1_REGEX_BE_COMPLETE     //Define how a dutch zip code is formatted     const std::tr1::regex dutch_zip_code("\\d{4}\\s[A-Z]{2}");     //Check if the regex works properly     assert(std::tr1::regex_match("1234 AB",dutch_zip_code)==true);     assert(std::tr1::regex_match("1234 ab",dutch_zip_code)==false);     assert(std::tr1::regex_match("1234ab",dutch_zip_code)==false);     //Define a sentence with a Dutch zip code in it     const std::string s = "My Dutch zip code is 1234 AB.";     //Show how std::tr1::regex_match and std::tr1::regex_search work     assert(std::tr1::regex_match(s,dutch_zip_code)==false       && "the std::string does not match a dutch zip code");     assert(std::tr1::regex_search(s,dutch_zip_code)==true       && "but the std::string does contain a dutch zip code");     //Show how to obtain a Dutch zip code from a std::string     /* const */ std::tr1::sregex_iterator i(s.begin(),s.end(),dutch_zip_code);     const std::string t = (*i).str();     assert(t=="1234 AB");     #endif   }   //std::tr1::shared_ptr   {     std::tr1::shared_ptr<int> p(new int(123));     assert(p);     assert(*p == 123);     std::tr1::shared_ptr<int> q = p;     assert(q);     assert(*p == *q);     *p = 234;     assert(*q == 234);   } }