example.cpp

@@ -27,9 +27,6 @@ signed main() {
   a.foo();
   a.bar(3,4,"hi");
 
-  print("this should not be in the output file");
-  redirect_output("example.out");
-
   auto [i, j] = read<int, int>();
   print(i, j);
 
@@ -71,12 +68,4 @@ signed main() {
   print(map<int, string>{{3,"three"},{1,"one"}});
   print(tuple{unordered_map<int, string>{{3,"three"},{1,"one"}}});
   print(unordered_set<int>{3,1,4});
-
-  redirect_input("example.in");
-  print("reading from example.in:", read_string());
-  redirect_input("example.in");
-  print("reading from example.in:", read_string());
-  print("this is the last line on example.out");
-  reset_output();
-  print("this is stdout only");
 }

include/bits/soi-deprecate.hpp

@@ -31,6 +31,7 @@ snprintf(char *buffer, std::size_t buf_size, const char *format, ...);
 #define puts puts_is_evil
 #define fputs fputs_is_evil
 #define fgets fgets_is_evil
+#define freopen freopen_is_evil
 #define fopen fopen_is_evil
 #define fclose fclose_is_evil
 #define fflush fflush_is_evil
@@ -47,6 +48,8 @@ snprintf(char *buffer, std::size_t buf_size, const char *format, ...);
 [[deprecated("<cstdio> is evil.  Use cin/cout.")]] char *
 fgets(char *str, int count, FILE *stream);
 [[deprecated("<cstdio> is evil.  Use cin/cout.")]] std::FILE *
+freopen(const char *filename, const char *mode, std::FILE *stream);
+[[deprecated("<cstdio> is evil.  Use cin/cout.")]] std::FILE *
 fopen(const char *filename, const char *mode);
 [[deprecated("<cstdio> is evil.  Use cin/cout.")]] int
 fclose(std::FILE *stream);

include/bits/soi-redirect.hpp

@@ -1,93 +0,0 @@
-#include <ostream>
-#include <streambuf>
-
-namespace soi {
-
-namespace redirect {
-
-class teebuf : public std::streambuf {
-  std::streambuf *sb1_;
-  std::streambuf *sb2_;
-
-  int overflow(int c) {
-    using traits = std::streambuf::traits_type;
-    bool rc = true;
-    if (!traits::eq_int_type(traits::eof(), c)) {
-      traits::eq_int_type(this->sb1_->sputc(c), traits::eof()) && (rc = false);
-      traits::eq_int_type(this->sb2_->sputc(c), traits::eof()) && (rc = false);
-    }
-    return rc ? traits::not_eof(c) : traits::eof();
-  }
-  int sync() {
-    bool rc = false;
-    this->sb1_->pubsync() != -1 || (rc = false);
-    this->sb2_->pubsync() != -1 || (rc = false);
-    return rc ? -1 : 0;
-  }
-
-public:
-  teebuf(std::streambuf *sb1, std::streambuf *sb2) : sb1_(sb1), sb2_(sb2) {}
-};
-
-static std::streambuf *checked_rdbuf(std::ios &stream, const char *filename,
-                                     const char *action) {
-  if (!stream) {
-    std::cerr << "ERROR: can't open to file " << filename << " for " << action
-              << '\n';
-    std::exit(-1);
-  }
-  return stream.rdbuf();
-}
-
-struct output_redirector {
-  std::ofstream fout;
-  teebuf tee;
-  std::streambuf *old_cout;
-
-  output_redirector(const char *filename)
-      : fout(filename),
-        tee(checked_rdbuf(fout, filename, "writing"), std::cout.rdbuf()),
-        old_cout(std::cout.rdbuf(&tee)) {}
-
-  ~output_redirector() { std::cout.rdbuf(old_cout); }
-};
-
-struct input_redirector {
-  std::ifstream fin;
-  std::streambuf *old_cin;
-
-  input_redirector(const char *filename)
-      : fin(filename),
-        old_cin(std::cin.rdbuf(checked_rdbuf(fin, filename, "reading"))) {}
-
-  ~input_redirector() { std::cin.rdbuf(old_cin); }
-};
-
-std::forward_list<output_redirector> output_redirectors;
-std::unique_ptr<input_redirector> the_input_redirector;
-
-} // namespace redirect
-
-} // namespace soi
-
-void redirect_output(const char *filename) {
-  soi::redirect::output_redirectors.emplace_front(filename);
-}
-void redirect_output(std::string const &filename) {
-  redirect_output(filename.c_str());
-}
-void reset_output() {
-  soi::redirect::output_redirectors.clear();
-}
-
-void reset_input() {
-  soi::redirect::the_input_redirector.reset();
-}
-void redirect_input(const char *filename) {
-  reset_input();
-  auto next = new soi::redirect::input_redirector(filename);
-  soi::redirect::the_input_redirector.reset(next);
-}
-void redirect_input(std::string const &filename) {
-  redirect_input(filename.c_str());
-}

include/soi

@@ -77,7 +77,7 @@ soi_initializer soi_initializer_{false};
 } // end namespace soi
 
 #include "bits/soi-io.hpp"
-#include "bits/soi-redirect.hpp"
+
 #include "bits/soi-deprecate.hpp"
 
 #define int int64_t