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Compiler Command-line Options
Example
--gnu_version=30401 makes the compiler compatible with GCC 3.4.1 as far as possible.
See also
• --arm_linux_configure on page 2-12
• --gnu on page 2-67.
2.1.83 --guiding_decls, --no_guiding_decls
This option enables or disables the recognition of guiding declarations for template
functions in C++.
A guiding declaration is a function declaration that matches an instance of a function
template but has no explicit definition because its definition derives from the function
template.
If --no_guiding_decls is combined with --old_specializations, a specialization of a
non-member template function is not recognized. It is treated as a definition of an
independent function.
Note
The option --guiding_decls is provided only as a migration aid for legacy source code
that does not conform to the C++ standard. Its use is not recommended.
Mode
This option is effective only if the source language is C++.
Default
The default is --no_guiding_decls.
Example
template void f(T)
{
...
}
void f(int);
When regarded as a guiding declaration, f(int) is an instance of the template.
Otherwise, it is an independent function so you must supply a definition.
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