Modern C for Absolute Beginners: A Friendly Introduction to the C Programming Language

© Slobodan Dmitrović 2021

S. DmitrovićModern C for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-6643-4_34

34. The C17 Standard

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

At the time of writing, the C17 standard, officially named ISO/IEC 9899:2018, is the last published C standard. It replaces the C11 standard, does not introduce new features, and fixes defects reported for C11. The __STDC_VERSION__ macro for this standard has the value of 201710L. To compile for a C17 standard, we include the -stdc=17 flag. Example:

gcc -Wall source.c -std=c17 -pedantic

The C17 standard is sometimes also referred to as the C18 standard. The C17 standard will be replaced by the upcoming standard, informally referred to as the C2X standard.