invalidPrintfArgType_float and wrongPrintfScanfArgNum false positives

[Nikita Leontiev]

cppcheck 2.21.0 generates invalidPrintfArgType_float and wrongPrintfScanfArgNum for the following code:

#include <stdio.h>
#include <locale.h>

int main()
{
    double value = 3.14;
    const size_t buffer_size = 64;
    char buffer[buffer_size];
    int precision = 2;
    _locale_t locale = _create_locale(LC_ALL, "C");
    _sprintf_s_l(buffer, buffer_size, "%.*f", locale, precision, value);
    _free_locale(locale);
    return 0;
}

cppcheck.exe --library=windows --enable=all .

test\main.cpp:11:2: warning: %f in format string (no. 2) requires 'double' but the argument type is 'signed int'. [invalidPrintfArgType_float]
 _sprintf_s_l(buffer, buffer_size, "%.*f", locale, precision, value);
 ^
test\main.cpp:11:2: warning: _sprintf_s_l format string requires 2 parameters but 3 are given. [wrongPrintfScanfArgNum]
 _sprintf_s_l(buffer, buffer_size, "%.*f", locale, precision, value);
 ^

Same for _swprintf_s_l.

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/14899