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std.cfg: Improved configuration of std::[w]string::substr(). Do not allow negative length arguments.

This commit is contained in:
orbitcowboy 2022-02-04 12:30:37 +01:00
parent 17b538210d
commit 7062b0a973
2 changed files with 23 additions and 0 deletions
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3
cfg/std.cfg
View File

@ -6813,6 +6813,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
</arg>
<arg nr="2" default="0" direction="in">
<not-uninit/>
<valid>0:</valid>
</arg>
</function>
<function name="std::wstring::substr">
@ -6825,6 +6826,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
</arg>
<arg nr="2" default="0" direction="in">
<not-uninit/>
<valid>0:</valid>
</arg>
</function>
<function name="std::basic_string::substr">
@ -6837,6 +6839,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
</arg>
<arg nr="2" default="0" direction="in">
<not-uninit/>
<valid>0:</valid>
</arg>
</function>
<!-- void std::ios::clear (std::ios::iostate state = std::ios::goodbit);-->

20
test/cfg/std.cpp
View File

@ -31,6 +31,26 @@
#include <iterator>
#include <vector>
void invalidFunctionArg_std_string_substr(const std::string &str, std::size_t pos, std::size_t len) {
// cppcheck-suppress invalidFunctionArg
(void)str.substr(-1,len);
// cppcheck-suppress invalidFunctionArg
(void)str.substr(pos,-1);
// no warning is expected for
(void)str.substr(pos,len);
(void)str.substr(pos, std::wstring::npos);
}
void invalidFunctionArg_std_wstring_substr(const std::wstring &str, std::size_t pos, std::size_t len) {
// cppcheck-suppress invalidFunctionArg
(void)str.substr(-1,len);
// cppcheck-suppress invalidFunctionArg
(void)str.substr(pos,-1);
// no warning is expected for
(void)str.substr(pos,len);
(void)str.substr(pos, std::string::npos);
}
double invalidFunctionArg_log10(double d = 0.0) {
// cppcheck-suppress invalidFunctionArg
return log10(d);