http://llvm.org/bugs/show_bug.cgi?id=16812
Bug ID: 16812
Summary: static analyzer should warn on use of va_arg() macro
before call to va_start() macro or after call to
va_end() macro
Product: clang
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Static Analyzer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
It would be nice if the static analyzer gave a warning about use of va_arg()
before the call to va_start() and one about use of va_arg() after the call to
va_end() with this code:
static void func(const char *format, ...)
{
va_list arguments;
int x = va_arg(arguments, int);
va_start (arguments, format);
vprintf(format, arguments);
va_end (arguments);
int y = va_arg(arguments, int);
printf("x + y = %d\n", (x + y));
}
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