Internal error MathLib::toDoubleNumber

[Norbert Lange]

When analysing a project which has its own isolated math library,
cppcheck chokes on definitions of float infinity. The code below is
pretty much like many c libraries define those macros.

file fail.c:

#if 100*__GNUC__+__GNUC_MINOR__ >= 303 || defined(__clang__)
#define NAN       __builtin_nanf("")
#define INFINITY  __builtin_inff()
#else
#define NAN       (0.0f/0.0f)
#define INFINITY  1e5000f
#endif

int main(int argc) {
return INFINITY + argc;
}

Calling cppcheck on it:

/tmp/lano/tmp_dir/fail.c:0:0: error: Internal Error. MathLib::toDoubleNumber: conversion failed: 1e5000f [cppcheckError]

[CHR]

Thanks for reporting, ticket is here: https://trac.cppcheck.net/ticket/12085