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-rw-r--r--runtime/stringbuf.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/runtime/stringbuf.c b/runtime/stringbuf.c
index e7fd72c2..5bca009d 100644
--- a/runtime/stringbuf.c
+++ b/runtime/stringbuf.c
@@ -482,6 +482,8 @@ rsRetVal cstrTrimTrailingWhiteSpace(cstr_t *pThis)
register uchar *pC;
rsCHECKVALIDOBJECT(pThis, OIDrsCStr);
+ if(pThis->iStrLen == 0)
+ goto done; /* empty string -> nothing to trim ;) */
i = pThis->iStrLen;
pC = pThis->pBuf + i - 1;
while(i > 0 && isspace((int)*pC)) {
@@ -492,7 +494,7 @@ rsRetVal cstrTrimTrailingWhiteSpace(cstr_t *pThis)
pThis->iStrLen = i;
pThis->pBuf[pThis->iStrLen] = '0'; /* we always have this space */
- return RS_RET_OK;
+done: return RS_RET_OK;
}
/* compare two string objects - works like strcmp(), but operates