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authorCarl Worth <cworth@cworth.org>2010-05-17 10:15:23 -0700
committerCarl Worth <cworth@cworth.org>2010-05-17 10:15:23 -0700
commit420d05a15b90658680b87b4d83b092768590319a (patch)
tree52a5a0ffc1e4919ee08c2e1add30d78d8fbc6d4c /main
parente36a4d5be9a9fa3abc4fb5d0b6c3601934f7a343 (diff)
Add test and fix bug leading to infinite recursion.
The test case here is simply "#define foo foo" and "#define bar foo" and then attempting to expand "bar". Previously, our termination condition for the recursion was overly simple---just looking for the single identifier that began the expansion. We now fix this to maintain a stack of identifiers and terminate when any one of them occurs in the replacement list.
Diffstat (limited to 'main')
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