llvm/libcxx
1
0
Fork 0
mirror of https://github.com/llvm-mirror/libcxx.git synced 2025-10-23 18:38:30 +08:00
Code Issues Packages Projects Releases Wiki Activity

Implement P0272R1: Give 'std::string' a non-const '.data()' member function

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@262931 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2016-03-08 15:44:30 +00:00
parent f6d6b51b63
commit f532a70b63
3 changed files with 42 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
test/std/strings/basic.string/string.ops/string.accessors/data.pass.cpp
View File

@@ -10,15 +10,17 @@
// <string>
// const charT* data() const;
// charT* data(); // C++17
#include <string>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
void
test(const S& s)
test_const(const S& s)
{
typedef typename S::traits_type T;
const typename S::value_type* str = s.data();
@@ -31,22 +33,46 @@ test(const S& s)
assert(T::eq(str[0], typename S::value_type()));
}
template <class S>
void
test_nonconst(S& s)
{
typedef typename S::traits_type T;
typename S::value_type* str = s.data();
if (s.size() > 0)
{
assert(T::compare(str, &s[0], s.size()) == 0);
assert(T::eq(str[s.size()], typename S::value_type()));
}
else
assert(T::eq(str[0], typename S::value_type()));
}
int main()
{
{
typedef std::string S;
test(S(""));
test(S("abcde"));
test(S("abcdefghij"));
test(S("abcdefghijklmnopqrst"));
test_const(S(""));
test_const(S("abcde"));
test_const(S("abcdefghij"));
test_const(S("abcdefghijklmnopqrst"));
}
#if __cplusplus >= 201103L
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S(""));
test(S("abcde"));
test(S("abcdefghij"));
test(S("abcdefghijklmnopqrst"));
test_const(S(""));
test_const(S("abcde"));
test_const(S("abcdefghij"));
test_const(S("abcdefghijklmnopqrst"));
}
#endif
#if TEST_STD_VER > 14
{
typedef std::string S;
S s1(""); test_nonconst(s1);
S s2("abcde"); test_nonconst(s2);
S s3("abcdefghij"); test_nonconst(s3);
S s4("abcdefghijklmnopqrst"); test_nonconst(s4);
}
#endif
}