| // Copyright 2005-2009 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| // ======================================================================== |
| |
| // PP_STRINGIZE - expands arguments before stringizing |
| // PP_STRINGIZE(PP_CAT(a,b)) => "ab" |
| |
| #define PP_STRINGIZE(text) PP_STRINGIZE_A((text)) |
| #define PP_STRINGIZE_A(arg) PP_STRINGIZE_B ## (arg) |
| #define PP_STRINGIZE_B(arg) PP_STRINGIZE_I ## arg |
| #define PP_STRINGIZE_I(text) #text |
| |
| // T_PP_STRINGIZE - expands arguments before stringizing |
| // T_PP_STRINGIZE(PP_CAT(a,b)) => _T("ab") |
| |
| #define T_PP_STRINGIZE(text) T_PP_STRINGIZE_A((text)) |
| #define T_PP_STRINGIZE_A(arg) T_PP_STRINGIZE_B ## (arg) |
| #define T_PP_STRINGIZE_B(arg) T_PP_STRINGIZE_I ## arg |
| #define T_PP_STRINGIZE_I(text) _T(#text) |
| |
| // PP_CAT - concatenates arguments after they have been expanded |
| // PP_CAT(x, PP_CAT(y,z)) => xyz |
| #define PP_CAT(a,b) PP_CAT_I(a,b) |
| #define PP_CAT_I(a,b) PP_CAT_J(a##b) |
| #define PP_CAT_J(arg) arg |
