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updated for R3.14

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This commit is contained in:
Jeff Hill
2001-06-15 23:27:04 +00:00
parent 60be389ce0
commit 5b729b2f31
1 changed files with 4 additions and 7 deletions
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11
README.cxxTemplates
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@@ -1,22 +1,19 @@
The C++ templates supplied with EPICS base are in
"$(EPICS)/base/src/cxxTemplates".
In Stroustrups's "The C++ Programming Language" Appendix A: r.14.9
(ANSI/ISO resolutions) a mechanism is described for the explicit
instantiation of template member functions (that are not inline).
At this time some compilers do not support this mechanism (and use
a template database snd/or smart linker instead). Other compilers
(such as g++) provide only limited support for other forms of
instantiation (g++ does not yet provide a template database or
a smart linker for templates).
instantiation (g++ currently supplies a smart linker for templates
only on a limited set of OS).
Since there is no defacto standard mechanism for instatiating
Since there is no standard mechanism for instatiating
templates at this time we are defining the preprocessor flag
EXPL_TEMPL in the build system when the compiler supports
explicit instantiation and the compiler does not support
automatic instantiation via a smart linker and/or template
database (currently this is only g++).
database.
EPICS codes that use templates may need to include a code block
as follow that instantiates the template only once into each