diff options
| -rw-r--r-- | src/corelib/tools/qstringbuilder.cpp | 2 | ||||
| -rw-r--r-- | src/corelib/tools/qstringbuilder.h | 2 | ||||
| -rw-r--r-- | tests/auto/qstringbuilder1/stringbuilder.cpp | 12 |
3 files changed, 16 insertions, 0 deletions
diff --git a/src/corelib/tools/qstringbuilder.cpp b/src/corelib/tools/qstringbuilder.cpp index 45de6bc..1cc7e5d 100644 --- a/src/corelib/tools/qstringbuilder.cpp +++ b/src/corelib/tools/qstringbuilder.cpp @@ -162,6 +162,8 @@ void QAbstractConcatenable::convertFromAscii(const char *a, int len, QChar *&out } #endif if (len == -1) { + if (!a) + return; while (*a) *out++ = QLatin1Char(*a++); } else { diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h index 709d84a..594ab2f 100644 --- a/src/corelib/tools/qstringbuilder.h +++ b/src/corelib/tools/qstringbuilder.h @@ -352,6 +352,8 @@ template <> struct QConcatenable<const char *> : private QAbstractConcatenable #endif static inline void appendTo(const char *a, char *&out) { + if (!a) + return; while (*a) *out++ = *a++; } diff --git a/tests/auto/qstringbuilder1/stringbuilder.cpp b/tests/auto/qstringbuilder1/stringbuilder.cpp index 2327ef5..de7ad65 100644 --- a/tests/auto/qstringbuilder1/stringbuilder.cpp +++ b/tests/auto/qstringbuilder1/stringbuilder.cpp @@ -133,6 +133,12 @@ void runScenario() QCOMPARE(r, string); r = string P ba; QCOMPARE(r, string); + + const char *zero = 0; + r = string P zero; + QCOMPARE(r, string); + r = zero P string; + QCOMPARE(r, string); #endif string = QString::fromLatin1(LITERAL); @@ -161,6 +167,12 @@ void runScenario() QCOMPARE(r, r2); r2 = QByteArray("hello\0") P UTF8_LITERAL; QCOMPARE(r, r2); + + const char *zero = 0; + r = ba P zero; + QCOMPARE(r, ba); + r = zero P ba; + QCOMPARE(r, ba); } //operator QString += |