Changes the group membership

Returns the size of this buffer.

multiply int8_t, add results pairwise twice and return as 512 bit int vector，then add the accumulator

horizontally add 8 floats

Sets an environment variable with the given name to the given value. If the value argument is "", unsets the environment variable. The caller must e

Since ::std::stringstream::operator<<(const void *) formats the pointer output differently with different compilers, we have to create the expected ou

===================== Helper functions

Clears this buffer.

Returns the absolute value of a Float value. This must be defined in the same namespace as Float.

Creates a text style from the foreground (text) color.

Creates a polymorphic matcher that matches a 2-tuple where the first field <= the second field.