| // checking static locals in inline code |
| |
| /*************************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed |
| * with this work for additional information regarding copyright |
| * ownership. The ASF licenses this file to you 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 |
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| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
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| * distributed under the License is distributed on an "AS IS" BASIS, |
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| * implied. See the License for the specific language governing |
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| * |
| * Copyright 1999-2007 Rogue Wave Software, Inc. |
| * |
| **************************************************************************/ |
| |
| #if 0 // guard invalid preprocessor symbol below |
| |
| // establish a dependency on collapse_static_locals.lib.* |
| # ifndef _RWSTD_NO_collapse_static_locals.lib |
| |
| // link this compiled translation unit with the lib below |
| // LDOPTS = collapse_static_locals.lib$(LIBSUFFIX) |
| |
| # endif // _RWSTD_NO_collapse_static_locals.lib |
| #endif // 0 |
| |
| |
| // also defined in collapse_static_locals.lib.cpp |
| inline int foo () |
| { |
| // multiple instances of `i' must be collapsed |
| static int i = 0; |
| return i++; |
| } |
| |
| // bar() returns foo() |
| extern int bar (); |
| |
| |
| int main () |
| { |
| // compilers that corectly collapse static locals will |
| // behave as commented below (others will return 0 from bar()) |
| |
| int i = foo (); // returns 0 |
| int j = bar (); // should return 1 |
| |
| return !(i != j); |
| } |