REAL32, REAL64, REAL128:
Kind type parameters to specify a REAL type with a storage size of 32, 64, and 128 bits. It is negative if a target platform does not support the particular kind. (Fortran 2008 or later.)
REAL_KINDS:
Default-kind integer constant array of rank one containing the supported kind parameters of the REAL type. (Fortran 2008 or later.)
6.1.8 Q exponent-letter
GNU Fortran accepts real literal constants with an exponent-letter of Q, for example, 1.23Q45. The constant is interpreted as a REAL(16) entity on targets that support this type. If the target does not support REAL(16) but has a REAL(10) type, then the real-literal-constant will be interpreted as a REAL(10) entity. In the absence of REAL(16) and REAL(10), an error will occur.
pasuka 发表于 2017-12-12 10:33
本站的教学视频都看过了?
看过三遍还是一知半解,那是教学视频做得不好;一遍都没看过,那是lz人生的重大 ...
vvt 发表于 2017-12-12 13:17
a=-14099.409813d0
或
a=-14099.409813_8
欢迎光临 Fortran Coder (http://bbs.fcode.cn/) | Powered by Discuz! X3.2 |