//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <string> // void reserve(size_type res_arg=0); #include <string> #include <stdexcept> #include <cassert> #include "min_allocator.h" template <class S> void test(S s) { typename S::size_type old_cap = s.capacity(); S s0 = s; s.reserve(); assert(s.__invariants()); assert(s == s0); assert(s.capacity() <= old_cap); assert(s.capacity() >= s.size()); } template <class S> void test(S s, typename S::size_type res_arg) { typename S::size_type old_cap = s.capacity(); S s0 = s; try { s.reserve(res_arg); assert(res_arg <= s.max_size()); assert(s == s0); assert(s.capacity() >= res_arg); assert(s.capacity() >= s.size()); } catch (std::length_error&) { assert(res_arg > s.max_size()); } } int main() { { typedef std::string S; { S s; test(s); s.assign(10, 'a'); s.erase(5); test(s); s.assign(100, 'a'); s.erase(50); test(s); } { S s; test(s, 5); test(s, 10); test(s, 50); } { S s(100, 'a'); s.erase(50); test(s, 5); test(s, 10); test(s, 50); test(s, 100); test(s, S::npos); } } #if __cplusplus >= 201103L { typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S; { S s; test(s); s.assign(10, 'a'); s.erase(5); test(s); s.assign(100, 'a'); s.erase(50); test(s); } { S s; test(s, 5); test(s, 10); test(s, 50); } { S s(100, 'a'); s.erase(50); test(s, 5); test(s, 10); test(s, 50); test(s, 100); test(s, S::npos); } } #endif }