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      1 /*
      2  * Copyright 2011, The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *     http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "raw_ostream.h"
     18 
     19 #include <llvm/Support/raw_ostream.h>
     20 #include <llvm/Support/Format.h>
     21 #include <cstdarg>
     22 #include <cstring>
     23 
     24 llvm::raw_ostream &out() {
     25   static llvm::raw_ostream &singleton = llvm::outs();
     26   return singleton;
     27 }
     28 
     29 MyFormat const fillformat(char const fill_char, // Fill character.
     30                           int const length,     // Fill Width.
     31                           char const *format_s, // Format string.
     32                           ...) {                // Format variable.
     33   using namespace std;
     34   struct MyFormat t_format;
     35   va_list valist;
     36   va_start(valist, format_s);
     37   t_format.ptr = new char[length+1];
     38   t_format.ptr[length] = '\0';
     39   vsnprintf(t_format.ptr, length, format_s, valist);
     40   int real_len = strlen(t_format.ptr);
     41   int fill_len = length;
     42   memmove(t_format.ptr + fill_len, t_format.ptr, real_len);
     43   memset(t_format.ptr, fill_char, fill_len);
     44   return t_format;
     45 }
     46 
     47 llvm::raw_ostream &operator<<(llvm::raw_ostream &os, MyFormat const &mf) {
     48   os << mf.ptr;
     49   delete mf.ptr;
     50   return os;
     51 }
     52