Aren/haiku
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Fix behaviour of towlower(), towupper() and towctrans():

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* all those functions need to return the given wc unchanged in case of
  error, not 0
* towctrans() didn't actually look at the requested transition, but 
  always acted as if _ISlower was given
This commit is contained in:
Oliver Tappe 2013-06-23 11:45:38 +02:00
parent 2551c12bec
commit b4dc51b39a
1 changed files with 12 additions and 6 deletions
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18
src/system/libroot/posix/locale/wctype.cpp
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@ -159,7 +159,7 @@ towlower(wint_t wc)
if (gLocaleBackend == NULL)
return tolower(wc);
wint_t result = 0;
wint_t result = wc;
gLocaleBackend->ToWCTrans(wc, _ISlower, result);
return result;
@ -172,7 +172,7 @@ towupper(wint_t wc)
if (gLocaleBackend == NULL)
return toupper(wc);
wint_t result = 0;
wint_t result = wc;
gLocaleBackend->ToWCTrans(wc, _ISupper, result);
return result;
@ -182,12 +182,18 @@ towupper(wint_t wc)
wint_t
towctrans(wint_t wc, wctrans_t transition)
{
if (gLocaleBackend == NULL)
return tolower(wc);
if (gLocaleBackend == NULL) {
if (transition == _ISlower)
return tolower(wc);
if (transition == _ISupper)
return toupper(wc);
wint_t result = 0;
__set_errno(EINVAL);
return wc;
}
wint_t result = wc;
status_t status = gLocaleBackend->ToWCTrans(wc, transition, result);
if (status != B_OK)
__set_errno(EINVAL);