diff options
Diffstat (limited to 'bfs.h')
| -rw-r--r-- | bfs.h | 21 |
1 files changed, 16 insertions, 5 deletions
@@ -62,16 +62,18 @@ typedef bool eval_fn(const struct expr *expr, struct eval_state *state); * Various debugging flags. */ enum debug_flags { + /** Print cost estimates. */ + DEBUG_COST = 1 << 0, /** Print executed command details. */ - DEBUG_EXEC = 1 << 0, + DEBUG_EXEC = 1 << 1, /** Print optimization details. */ - DEBUG_OPT = 1 << 1, + DEBUG_OPT = 1 << 2, /** Print rate information. */ - DEBUG_RATES = 1 << 2, + DEBUG_RATES = 1 << 3, /** Trace all stat() calls. */ - DEBUG_STAT = 1 << 3, + DEBUG_STAT = 1 << 4, /** Print the parse tree. */ - DEBUG_TREE = 1 << 4, + DEBUG_TREE = 1 << 5, }; /** @@ -212,6 +214,10 @@ struct expr { /** Whether this expression always evaluates to false. */ bool always_false; + /** Estimated cost. */ + double cost; + /** Estimated probability of success. */ + double probability; /** Number of times this predicate was executed. */ size_t evaluations; /** Number of times this predicate succeeded. */ @@ -274,6 +280,11 @@ struct expr { bool expr_never_returns(const struct expr *expr); /** + * @return The result of the comparison for this expression. + */ +bool expr_cmp(const struct expr *expr, long long n); + +/** * Parse the command line. */ struct cmdline *parse_cmdline(int argc, char *argv[]); |