返回信息流When the ANSI C standard was under development, the pragma directive
was introduced. Borrowed from Ada, #pragma is used to convey hints
to the compiler, such as the desire to expand a particular function
in-line or suppress range checks. Not previously seen in C, pragma met
with some initial resistance from a gcc implementor, who took the
"implementation-defined" effect very literally—in gcc version 1.34,
the use of pragma causes the compiler to stop compiling and launch a
computer game instead! The gcc manual contained the following:
The "#pragma" command is specified in the ANSI standard to have an
arbitrary implementationdefined effect. In the GNU C preprocessor,
"#pragma" first attempts to run the game "rogue"; if that fails, it
tries to run the game "hack"; if that fails, it tries to run GNU Emacs
displaying the Tower of Hanoi; if that fails, it reports a fatal error.
In any case, preprocessing does not continue.
—Manual for version 1.34 of the GNU C compiler
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sunway
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