* Amit Choudhary via Gcc-help: > I downloaded the gcc source code to find the source code of gcc > implementation of printf function in assembly. But I could not find it. > Does anyone know. Please let me know. The implementation is in the corresponding C library (such as glibc, musl, or newlib), not in GCC itself. For glibc, the implementation is in stdio-common/vfprintf-internal.c, but it is very macro-heavy and tied to the obsolete libio framework. Other implementations are perhaps more straightforward. Thanks, Florian