Created attachment 210524 [details]
Doxyfile

I saw this bug on Linux and Windows platforms, both in 1.8.0 version.

When a variable is a pointer on function and you assign it to a function, Doxygen see a call to this function.

See the attached Doxyfile and following C code.

I tried to disable the parsing of these assignments with #ifndef and @cond but it doesn't work (at least on Linux)

For me we should see only the main to func3 call.

/** @file */
/** @brief Show callgraph bug on function assignment */

typedef void functype(int);

typedef struct
{
    functype (*m_f1);
    functype (*m_f2);
} s_ess;

s_ess my;


void func1(int a)
{
}


void func2(int b)
{
}

void func3(int b)
{
/** @note of course static analyze cannot guess the called functions */
    my.m_f1(1);
    my.m_f2(2);
}

int main()
{
/** @note my.m_f1 assignment should be ignored */
#ifndef DOXYGEN
    my.m_f1 = func1;
#endif

/** @note my.m_f2 assignment should be ignored */
/** @cond */
    my.m_f2 = func2;
/** @endcond */

/** @note should be the only one in the callgraph */
    func3(3);

    return 0;
}