How can we know the caller function's name?

Question

In the C language, __FUNCTION__ can be used to get the current function\'s name. But if I define a function named a() and it is called

Answer 1

You can tag each function that calls a() with an integer identifier which is passed to a() as a parameter and then use a switch-case construct in a() to tell which function has invoked a().A printf() would tell which function invoked a() depending on the integer identifier value if you use that as an argument to a switch-case construct in a()

#include

void a(int);
void b();
void c();
void d();

int main(void)
{

b();
c();
d();

}

void b()
{

int x=1;
a(x);

}

void c()
{

int x=2;
a(x);

}

void d()
{

int x=3;
a(x);

}

void a(int x)
{

switch(x)
{
case 1:
printf("b called me\n");
break;
 case 2:
printf("c called me\n");
break;
case 3:
printf("d called me\n");
}

}