6.38. C++ Style Comments

6.38 C++ Style Comments

In GNU C, you may use C++ style comments, which start with ‘//’ and continue until the end of the line. Many other C implementations allow such comments, and they are included in the 1999 C standard. However, C++ style comments are not recognized if you specify an -std option specifying a version of ISO C before C99, or -ansi (equivalent to -std=c90).