Mostly harmless: An account of pseudo-normal floating point numbers
Floating point arithmetic is a popularly esoteric subject in computer science. It is safe to say that every software engineer has heard of floating point Read More
Category: gcc
Report from the virtual ISO C++ meetings in 2020 (core language)
C++ standardization was dramatically different in 2020 from earlier years. The business of the International Organization for Standardization (ISO) committee all took place virtually, much Read More
Use multiple compilers to build better projects
For a multitude of reasons, developers usually compile the project they are working on with only one compiler. On Red Hat Enterprise Linux 8, the Read More
Red Hat Software Collections 3.7 and Red Hat Developer Toolset 10.1 beta versions now available
The latest versions of Red Hat Software Collections and Red Hat Developer Toolset are available now in beta. Software Collections 3.7 delivers the latest stable Read More
Value range propagation in GCC with Project Ranger
One of the optimizations GNU Compiler Collection (GCC) performs on C and C++ programs is value range propagation (VRP). VRP determines what subranges a variable Read More
Valgrind Memcheck: Different ways to lose your memory
Valgrind is an instrumentation framework for building dynamic analysis tools that check C and C++ programs for errors. Memcheck is the default tool Valgrind uses Read More
Building Red Hat Enterprise Linux 9 for the x86-64-v2 microarchitecture level
One of the most important early decisions when building a Linux distribution is the scope of supported hardware. The distribution’s default compiler flags are significant Read More
Toward _FORTIFY_SOURCE parity between Clang and GCC
GCC combined with glibc can detect instances of buffer overflow by standard C library functions. When a user passes the -D_FORTIFY_SOURCE={1,2} preprocessor flag and an Read More
Report from the February 2019 ISO C++ meeting (Library)
Back in February, I attended the WG21 C++ standards committee meeting in rainy Kona, Hawaii (yes, it rained most of the week). This report is Read More