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r17435@tombo: nickm | 2008-07-30 08:50:54 -0400

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Allow alternate form of SMARTLIST_FOREACH with paired BEGIN and END macros.  This lets the compiler tell us which line an error has occurred on.


svn:r16256
This commit is contained in:
Nick Mathewson 2008-07-30 13:04:28 +00:00
parent e5bc5f11b8
commit f366d10a2f
1 changed files with 10 additions and 4 deletions
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14
src/common/container.h
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@ -195,15 +195,21 @@ char *smartlist_join_strings2(smartlist_t *sl, const char *join,
* }
* </pre>
*/
#define SMARTLIST_FOREACH(sl, type, var, cmd) \
#define SMARTLIST_FOREACH_BEGIN(sl, type, var) \
STMT_BEGIN \
int var ## _sl_idx, var ## _sl_len=(sl)->num_used; \
type var; \
for (var ## _sl_idx = 0; var ## _sl_idx < var ## _sl_len; \
++var ## _sl_idx) { \
var = (sl)->list[var ## _sl_idx]; \
cmd; \
} STMT_END
var = (sl)->list[var ## _sl_idx];
#define SMARTLIST_FOREACH_END(var) \
} STMT_END
#define SMARTLIST_FOREACH(sl, type, var, cmd) \
SMARTLIST_FOREACH_BEGIN(sl,type,var) { \
cmd; \
} SMARTLIST_FOREACH_END(var)
/** Helper: While in a SMARTLIST_FOREACH loop over the list <b>sl</b> indexed
* with the variable <b>var</b>, remove the current element in a way that