Provided by: libstdc++-8-doc_8.4.0-1ubuntu1~18.04_all 

NAME
std_abs.h
SYNOPSIS
Namespaces
std
ISO C++ entities toplevel namespace is std.
Functions
long std::abs (long __i)
long long std::abs (long long __x)
constexpr double std::abs (double __x)
constexpr float std::abs (float __x)
constexpr long double std::abs (long double __x)
Detailed Description
This is an internal header file, included by other library headers. Do not attempt to use it directly.
Instead, include <cmath> or < cstdlib>.
Definition in file std_abs.h.
Author
Generated automatically by Doxygen for libstdc++ from the source code.
libstdc++ Tue Mar 10 2020 std_abs.h(3cxx)