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https://github.com/boostorg/static_string.git
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More constexpr tests
This commit is contained in:
Krystian Stasiowski
153
test/constexpr_tests.hpp
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153
test/constexpr_tests.hpp
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@ -0,0 +1,153 @@
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#include <string>
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#include <boost/static_string/static_string.hpp>
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// char_traits aren't constexpr until c++17
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#ifndef BOOST_STATIC_STRING_CPP17_CONSTEXPR_USED
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struct cxper_char_traits
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{
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using char_type = char;
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using int_type = int;
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using state_type = mbstate_t;
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static constexpr void assign(char_type& c1, const char_type& c2) noexcept {}
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static constexpr bool eq(char_type c1, char_type c2) noexcept { return true; }
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static constexpr bool lt(char_type c1, char_type c2) noexcept { return true; }
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static constexpr int compare(const char_type* s1, const char_type* s2, size_t n) { return 0; }
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static constexpr size_t length(const char_type* s) { return 0; }
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static constexpr const char_type* find(const char_type* s, size_t n,
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const char_type& a)
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{
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return 0;
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}
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static constexpr char_type* move(char_type* s1, const char_type* s2, size_t n) { return s1; }
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static constexpr char_type* copy(char_type* s1, const char_type* s2, size_t n) { return s1; }
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static constexpr char_type* assign(char_type* s, size_t n, char_type a) { return s; }
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};
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#else
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using cxper_char_traits = std::char_traits<char>;
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#endif
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using cstatic_string = boost::static_string::basic_static_string<50, char, cxper_char_traits>;
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inline
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constexpr
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bool
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testConstantEvaluation()
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{
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#ifdef BOOST_STATIC_STRING_CPP20_CONSTEXPR_USED
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// c++20 constexpr tests
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return true;
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#elif defined(BOOST_STATIC_STRING_CPP17_CONSTEXPR_USED)
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// c++17 constexpr tests
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return true;
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#elif defined(BOOST_STATIC_STRING_CPP14_CONSTEXPR_USED)
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// c++14 constexpr tests
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// ctors
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cstatic_string a;
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cstatic_string b(1, 'a');
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cstatic_string c(b, 0);
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cstatic_string d(b, 0, 1);
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cstatic_string e("a", 1);
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cstatic_string f("a");
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//cstatic_string g(f.begin(), f.end());
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cstatic_string h(f);
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cstatic_string i({'a'});
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// assignment
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a = b;
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a = "a";
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a = 'a';
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a = {'a'};
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// assign
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a.assign(b);
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a.assign(b, 0, 1);
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a.assign("a", 1);
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a.assign("a");
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a.assign(b.begin(), b.end());
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a.assign({'a'});
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a.assign(1, 'a');
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// element access
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{
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auto j = a.at(0);
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}
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{
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auto j = a[0];
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}
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{
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auto j = a.front();
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}
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{
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auto j = a.back();
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}
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{
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auto j = a.data();
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}
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{
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auto j = a.c_str();
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}
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{
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auto j = a.begin();
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}
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{
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auto j = a.cbegin();
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}
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{
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auto j = a.end();
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}
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{
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auto j = a.cend();
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}
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/*
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{
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auto j = a.rbegin();
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}
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{
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auto j = a.crbegin();
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}
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{
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auto j = a.rend();
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}
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{
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auto j = a.crend();
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}*/
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// capacity and size
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auto j = cstatic_string().size() +
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cstatic_string().empty() +
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cstatic_string().length() +
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cstatic_string().max_size() +
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cstatic_string().capacity();
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// clear
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a.clear();
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// insert
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a.insert(a.begin(), 1, 'a');
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// cannot have a pointer outside the same array due to UB
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a.insert(0, a.begin());
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a.insert(0, a.begin(), 1);
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a.insert(a.begin(), 'a');
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a.insert(a.begin(), {'a'});
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// erase
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a.erase();
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a.erase(a.begin());
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a.erase(a.begin(), a.end());
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// push
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a.push_back('a');
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a.pop_back();
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return true;
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#elif defined(BOOST_STATIC_STRING_CPP11_CONSTEXPR_USED)
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// c++11 constexpr tests
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return cstatic_string().size() +
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cstatic_string().empty() +
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cstatic_string().length() +
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cstatic_string().max_size() +
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cstatic_string().capacity();
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#endif
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}
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@ -13,6 +13,10 @@
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#include <boost/core/lightweight_test.hpp>
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#include "constexpr_tests.hpp"
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#include <iostream>
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namespace boost {
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namespace static_string {
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@ -202,10 +206,13 @@ testR(S s, typename S::size_type pos, typename S::size_type n1, const typename S
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{
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const typename S::size_type old_size = s.size();
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S s0 = s;
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if (n1 > old_size)
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s.size();
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if (pos <= old_size)
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{
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s.replace(pos, n1, str, n2);
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return s == expected;
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s0.replace(s0.begin() + pos, s0.begin() + pos + n1, str, str + n2);
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return s == expected && s0 == expected;
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}
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else
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{
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@ -214,7 +221,7 @@ testR(S s, typename S::size_type pos, typename S::size_type n1, const typename S
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}
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}
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// dpne
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// done
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static
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void
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@ -5780,7 +5787,7 @@ testReplace()
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// replace(const_iterator i1, const_iterator i2, InputIterator j1, InputIterator j2);
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{
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static_string<20> fs1 = "helloworld";
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BOOST_TEST(fs1.replace(fs1.begin(), fs1.end(), fs1.begin(), fs1.end()) == "helloworld");
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BOOST_TEST(fs1.replace(fs1.begin(), fs1.begin() + 5, fs1.begin(), fs1.end()) == "helloworldworld");
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}
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// replace(const_iterator i1, const_iterator i2, initializer_list<charT> il);
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{
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@ -6904,95 +6911,10 @@ void testHash()
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BOOST_TEST(hasher(U("1234567890")) == hasher(U("1234567890")));
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}
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#ifdef BOOST_STATIC_STRING_CPP14_CONSTEXPR_USED
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struct cxper_char_traits
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{
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using char_type = char;
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using int_type = int;
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using state_type = mbstate_t;
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static constexpr void assign(char_type& c1, const char_type& c2) noexcept { }
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static constexpr bool eq(char_type c1, char_type c2) noexcept { return true; }
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static constexpr bool lt(char_type c1, char_type c2) noexcept { return true; }
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static constexpr int compare(const char_type* s1, const char_type* s2, size_t n) { return 0; }
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static constexpr size_t length(const char_type* s) { return 0; }
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static constexpr const char_type* find(const char_type* s, size_t n,
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const char_type& a) { return 0; }
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static constexpr char_type* move(char_type* s1, const char_type* s2, size_t n) { return s1; }
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static constexpr char_type* copy(char_type* s1, const char_type* s2, size_t n) { return s1; }
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static constexpr char_type* assign(char_type* s, size_t n, char_type a) { return s; }
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};
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#endif
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constexpr bool testConstexpr()
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{
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#if __cplusplus > 201703L
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// c++20 constexpr tests
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#elif __cplusplus >= 201703L
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// c++17 constexpr tests
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using S = basic_static_string<16, char, cxper_char_traits>;
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// ctor
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{
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constexpr S s1;
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constexpr S s2(1, 'a');
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constexpr S s3("");
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constexpr S s4("", 1);
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constexpr S s5 = s1;
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constexpr auto b = s1.size();
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constexpr auto c = s1.empty();
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constexpr auto d = s1.max_size();
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constexpr auto e = s1.capacity();
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constexpr auto f = s1.length();
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constexpr auto g = s2.front();
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constexpr auto h = s2.back();
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}
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#elif __cplusplus >= 201402L
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// c++14 constexpr tests
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using S = basic_static_string<16, char, cxper_char_traits>;
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// ctor
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{
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constexpr S s1;
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constexpr S s2(1, 'a');
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constexpr S s3("");
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constexpr S s4("", 1);
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constexpr S s5 = s1;
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constexpr auto b = s1.size();
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constexpr auto c = s1.empty();
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constexpr auto d = s1.max_size();
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constexpr auto e = s1.capacity();
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constexpr auto f = s1.length();
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constexpr auto g = s2.front();
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constexpr auto h = s2.back();
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}
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static_string<0> a;
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constexpr auto b = a.data();
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//constexpr auto g = s1.assign(1, '1');
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//constexpr auto h = s1.assign({'1'});
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//constexpr auto i = s1.assign("", 1);
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#elif __cplusplus >= 201103L
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// c++11 constexpr tests
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/*basic_static_string<4, char, cxper_char_traits> a;
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auto b = a.size();
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auto c = a.empty();
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auto d = a.empty();*/
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#endif
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return true;
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}
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int
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runTests()
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{
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constexpr auto cxper = testConstexpr();
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constexpr auto cxper = testConstantEvaluation();
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testConstruct();
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@ -7024,7 +6946,6 @@ runTests()
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testStartsEnds();
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testHash();
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return report_errors();
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}
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