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| author | Wenji Huang <wenji.huang@oracle.com> | 2009-04-27 04:34:42 -0400 |
|---|---|---|
| committer | Wenji Huang <wenji.huang@oracle.com> | 2009-04-26 23:04:52 -0400 |
| commit | 40fc3e43cea224623400ac07b6f03c700d209dec (patch) | |
| tree | a515fed92b082c8f1140c31deb006ef1254fabbc /tapset/string.stp | |
| parent | 9f38e65363878d1e1bc8f51a0ad2cc4fd0316e13 (diff) | |
| download | systemtap-steved-40fc3e43cea224623400ac07b6f03c700d209dec.tar.gz systemtap-steved-40fc3e43cea224623400ac07b6f03c700d209dec.tar.xz systemtap-steved-40fc3e43cea224623400ac07b6f03c700d209dec.zip | |
Add function of returning the char in given position of string
* tapset/string.stp: New function stringat.
* testsuite/systemtap.printf/char1.exp: Update test case.
* testsuite/systemtap.printf/char1.stp: Ditto.
Diffstat (limited to 'tapset/string.stp')
| -rw-r--r-- | tapset/string.stp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tapset/string.stp b/tapset/string.stp index 2f43aecc..35ee9fa2 100644 --- a/tapset/string.stp +++ b/tapset/string.stp @@ -25,6 +25,18 @@ function substr:string(str:string,start:long, length:long) %{ /* pure */ strlcpy(THIS->__retvalue, THIS->str + THIS->start, length); %} +/** @addtogroup library +* @code function stringat:string(str:string, pos:long) @endcode +* @param str string +* @param pos the given position. 0 = start of the string +* @return Returns the char in given position of string. +*/ +function stringat:long(str:string, pos:long) %{ /* pure */ + if (THIS->pos >= 0 && THIS->pos < strlen(THIS->str)) + THIS->__retvalue = THIS->str[THIS->pos]; + else + THIS->__retvalue = 0; +%} /** @addtogroup library * @code isinstr:long(s1:string,s2:string) @endcode |