diff options
author | Kartik K. Agaram <vc@akkartik.com> | 2016-06-02 13:39:45 -0700 |
---|---|---|
committer | Kartik K. Agaram <vc@akkartik.com> | 2016-06-02 13:39:45 -0700 |
commit | c58e23683c2abbd368f06ef664a9341305b3a63c (patch) | |
tree | 1f595f31cac0c04183579c13b14fc74bd717f33a | |
parent | a6a95dae5bd4c3dbdcde3eea027ea61c5f693d3e (diff) | |
download | mu-c58e23683c2abbd368f06ef664a9341305b3a63c.tar.gz |
3030
-rw-r--r-- | 001help.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/001help.cc b/001help.cc index 5e769ab1..d6fa6d25 100644 --- a/001help.cc +++ b/001help.cc @@ -95,10 +95,10 @@ bool is_equal(char* s, const char* lit) { //: up in than integer overflow. :(before "End Includes") #define SIZE(X) (assert((X).size() < (1LL<<(sizeof(int)*8-2))), static_cast<int>((X).size())) -//: + //: 5. Integer overflow is guarded against at runtime using the -ftrapv flag //: to the compiler, supported by both GCC and LLVM. -//: + //: 6. Map's operator[] being non-const is fucking evil. :(before "Globals") // can't generate prototypes for these // from http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map @@ -124,10 +124,11 @@ template<typename T> typename T::mapped_type& get_or_insert(T& map, typename T:: } //: The contract: any container that relies on get_or_insert should never call //: contains_key. -//: + //: 7. istreams are a royal pain in the arse. You have to be careful about //: what subclass you try to putback into. You have to watch out for the pesky //: failbit and badbit. Just avoid eof() and use this helper instead. +:(code) bool has_data(istream& in) { return in && !in.eof(); } |