Hi I've split my project in 2 parts while each part is implemented by one. So some includes like <reg51.h> is done twice which resulted in error. So in order to avoid this I did as follows: #if !defined(REG51_h__INCLUDED_) #define REG51_h__INCLUDED_ #endif but it seems that this doesn't result in: #include <reg51.h> if it has not been included before. How should I solve it?!! I appreciate your attention in advance!!
"I was not aware that it was a forbidden issue" ISO/IEC 9899:1990 Programming Languages - C Section 7.1.3, Reserved Identifiers: "All identifiers that begin with an underscore and either an uppercase letter or another underscore are always reserved for any use"