Host: unconstify editline paramters

Although the interface to el_push should be a constant parameter (as it is on
Darwin), certain Linux distributions currently ship a header which does not
provide proper const correctness.  This causes compilation failures on Linux.
Strip the constness on the parameter, which whilst incorrect, is mostly
harmless.  The parameter will not be changed by the interface and so it is
acceptable to do this.  When distributions have updated to a more correct
declaration, it would be nice to revert this change.

Addresses PR18784.

llvm-svn: 201092

diff --git a/lldb/source/Host/common/Editline.cpp b/lldb/source/Host/common/Editline.cpp
index d017062..f2b7a1f 100644 (file)
--- a/lldb/source/Host/common/Editline.cpp
+++ b/lldb/source/Host/common/Editline.cpp
@@ -264,7 +264,8 @@ Editline::Push (const char *bytes, size_t len)
     {
         // Must NULL terminate the string for el_push() so we stick it
         // into a std::string first
-        ::el_push(m_editline, std::string (bytes, len).c_str());
+        ::el_push(m_editline,
+                  const_cast<char*>(std::string (bytes, len).c_str()));
         return len;
     }
     return 0;
@@ -340,7 +341,8 @@ Editline::GetLines(const std::string &end_line, StringList &lines)
                         // we were editing previous lines, then populate the line
                         // with the appropriate contents
                         if (line_idx+1 < lines.GetSize() && !lines[line_idx+1].empty())
-                            ::el_push (m_editline, lines[line_idx+1].c_str());
+                            ::el_push (m_editline,
+                                       const_cast<char*>(lines[line_idx+1].c_str()));
                     }
                     else if (line_status == LineStatus::Error)
                     {
@@ -356,7 +358,8 @@ Editline::GetLines(const std::string &end_line, StringList &lines)
                         //::fprintf (out_file, "\033[1A\033[%uD\033[2K", (uint32_t)(m_lines_prompt.size() + lines[line_idx].size())); // Make cursor go up a line and clear that line
                         ::fprintf (out_file, "\033[1A\033[1000D\033[2K");
                         if (!lines[line_idx-1].empty())
-                            ::el_push (m_editline, lines[line_idx-1].c_str());
+                            ::el_push (m_editline,
+                                       const_cast<char*>(lines[line_idx-1].c_str()));
                         --m_lines_curr_line;
                     }
                     break;
@@ -366,7 +369,8 @@ Editline::GetLines(const std::string &end_line, StringList &lines)
                     //::fprintf (out_file, "\033[1B\033[%uD\033[2K", (uint32_t)(m_lines_prompt.size() + lines[line_idx].size()));
                     ::fprintf (out_file, "\033[1B\033[1000D\033[2K");
                     if (line_idx+1 < lines.GetSize() && !lines[line_idx+1].empty())
-                        ::el_push (m_editline, lines[line_idx+1].c_str());
+                        ::el_push (m_editline,
+                                   const_cast<char*>(lines[line_idx+1].c_str()));
                     break;
             }
         }