Package: manpages-dev Severity: normal Tags: upstream Control: clone -1 -2 Control: reassign -2 libc6-dev Control: retitle -2 libc6-dev: fenv.h should document #pragma STDC FENV_ACCESS
Quoting from https://en.cppreference.com/w/cpp/numeric/fenv: [...] The floating-point environment access and modification is only meaningful when #pragma STDC FENV_ACCESS is supported and is set to ON. Otherwise the implementation is free to assume that floating-point control modes are always the default ones and that floating-point status flags are never tested or modified. [...] The FENV_ACCESS pragma was introduced in C99 (Chapter 7.6.1). This should be documented in fenv.h and fenv(3). Andreas PS: I had to learn that the hard way with clang-16 ... where it makes a difference ...
