C++ gettid() was not declared in this scope

Question

A simple program is: I would like to get the thread ID of both of the threads using this gettid function. I do not want to do the sysCall directly. I want to use this funct

Answer 1

This is a silly glibc bug. Work around it like this:

#include 
#include 
#define gettid() syscall(SYS_gettid)