This International Standard specifies requirements for implementations of the C + + programming language. The first such requirement is that they implement the language, and so this International Standard also defines C+ +. Other requirements and

C语言的2011版正式版标准。非201x版哦，国内很难找的到。(the Standarded of C Programming Lanaguage)

C语言规范标准-C99 ISOIEC 9899-201x-C语言标准规范(Standard standard for C language)