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Fix FN for ptrdiff_t passed as %zd into scanf

This commit is contained in:
Dmitry-Me 2017-11-08 14:22:03 +03:00
parent 3d2f86cef7
commit 970aee9ce1
2 changed files with 6 additions and 5 deletions
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3
lib/checkio.cpp
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@ -847,8 +847,7 @@ void CheckIO::checkFormatString(const Token * const tok,
invalidScanfArgTypeError_int(tok, numFormat, specifier, &argInfo, false);
break;
case 'z':
if (!typesMatch(argInfo.typeToken->originalName(), "ptrdiff_t") &&
!typesMatch(argInfo.typeToken->originalName(), "ssize_t"))
if (!typesMatch(argInfo.typeToken->originalName(), "ssize_t"))
invalidScanfArgTypeError_int(tok, numFormat, specifier, &argInfo, false);
break;
case 't':

8
test/testio.cpp
View File

@ -1464,7 +1464,7 @@ private:
TEST_SCANF_WARN("%zd", "ssize_t", "void *");
TEST_SCANF_WARN_AKA("%zd", "ssize_t", "size_t", "unsigned long", "unsigned long long");
TEST_SCANF_NOWARN("%zd", "ssize_t", "ssize_t");
//TEST_SCANF_WARN_AKA("%zd", "ssize_t", "ptrdiff_t", "signed long", "signed long long");
TEST_SCANF_WARN_AKA("%zd", "ssize_t", "ptrdiff_t", "signed long", "signed long long");
TEST_SCANF_WARN("%tu", "unsigned ptrdiff_t", "bool");
TEST_SCANF_WARN("%tu", "unsigned ptrdiff_t", "char");
@ -1983,8 +1983,10 @@ private:
" scanf(\"%zd\", &s2);\n"
" scanf(\"%zd\", &s3);\n"
"}\n";
const char* result("[test.cpp:5]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'size_t * {aka unsigned long *}'.\n");
const char* result_win64("[test.cpp:5]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'size_t * {aka unsigned long long *}'.\n");
const char* result("[test.cpp:5]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'size_t * {aka unsigned long *}'.\n"
"[test.cpp:6]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'ptrdiff_t * {aka signed long *}'.\n");
const char* result_win64("[test.cpp:5]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'size_t * {aka unsigned long long *}'.\n"
"[test.cpp:6]: (portability) %zd in format string (no. 1) requires 'ssize_t *' but the argument type is 'ptrdiff_t * {aka signed long long *}'.\n");
check(code, false, true, Settings::Unix32);
ASSERT_EQUALS(result, errout.str());