RSpec
Ruby on Rails
Ruby
method
have_header
v1_9_1_378 -
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= protected
have_header(header, &b)
public
Returns whether or not the given header file can be found on your system. If found, a macro is passed as a preprocessor constant to the compiler using the header file name, in uppercase, prepended with ‘HAVE_’.
For example, if have_header(‘foo.h’) returned true, then the HAVE_FOO_H preprocessor macro would be passed to the compiler.
