只是突出的细节:
编译:
g++ -c memref_test.cpp
g++ -c -I/home/chap/private/WDI/git -I/home/chap/private/WDI/git/include -I/usr/local/mysql/include -I/usr/local/include -I/home/chap/private/WDI/git -I/home/chap/private/WDI/git/include -I/usr/include/mysql -fno-strict-aliasing -g -O0 --std=c++11 MemRef.cpp
g++ -o memref_test memref_test.o MemRef.o
错误:
MemRef.h:36:24: warning: inline function ‘bool operator<(const MemRef&, const MemRef&)’ used but never defined [enabled by default]
/usr/include/c++/4.7/bits/stl_algo.h:86: undefined reference to `operator<(MemRef const&, MemRef const&)'
内存参考.h:
class MemRef {
public:
friend inline bool operator< (const MemRef& lhs, const MemRef& rhs);
};
内存参考.cpp:
inline bool
operator< (const MemRef& lhs, const MemRef& rhs){
int minlen =
lhs._len <= rhs._len
? lhs._len
: rhs._len;
int res = memcmp(lhs._ptr, rhs._ptr, minlen);
if (res < 0) return true;
if (res > 0) return false;
// equal for minlen, so he with the lesser length wins
return (lhs._len < rhs._len);
}
memref_test.cpp:
deque<MemRef> memrefs;
const string record("Record 1\tABLE\tBAKER\tCHARLIE");
MemRef::split(memrefs, record, '\t');
std::sort(memrefs.begin(), memrefs.end());
我已经绞尽脑汁了六个小时,在谷歌上搜索和搜索,我需要帮助。谢谢。