diff options
Diffstat (limited to 'lib/fwdlib.hpp')
| -rw-r--r-- | lib/fwdlib.hpp | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/lib/fwdlib.hpp b/lib/fwdlib.hpp index 623dc13..51450c1 100644 --- a/lib/fwdlib.hpp +++ b/lib/fwdlib.hpp @@ -10,7 +10,9 @@ using namespace std; -static void fwd_getline(auto next) +typedef const char *fwd_err_t; + +static fwd_err_t fwd_getline(auto next) { if (cin.eof()) return next(optional<string>{}); @@ -21,13 +23,13 @@ static void fwd_getline(auto next) return next(optional<string>{}); } -static void fwd_foreach(auto container, auto next) +static fwd_err_t fwd_foreach(auto container, auto next) { for (auto &n : container) next(n); } -static void fwd_some(auto option, auto ok, auto fail) +static fwd_err_t fwd_some(auto option, auto ok, auto fail) { if (option) return ok(std::move(option.value())); @@ -35,12 +37,12 @@ static void fwd_some(auto option, auto ok, auto fail) return fail(); } -static void fwd_copy(auto n, auto next) +static fwd_err_t fwd_copy(auto n, auto next) { return next(n, n); } -static void fwd_null(auto *x, auto fail, auto ok) +static fwd_err_t fwd_null(auto *x, auto fail, auto ok) { if (x) return ok(*x); @@ -48,18 +50,19 @@ static void fwd_null(auto *x, auto fail, auto ok) return fail(); } -static void fwd_insert(auto container, auto elem, auto next) +static fwd_err_t fwd_insert(auto container, auto elem, auto next) { container.insert(std::move(elem)); return next(std::move(container)); } -static void fwd_println(auto elem) +static fwd_err_t fwd_println(auto elem) { cout << elem << endl; + return nullptr; } -static void fwd_intalloc(auto ok) +static fwd_err_t fwd_intalloc(auto ok) { int *p = new int{20}; ok(p); |