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/GNU Fortran 6

9.177 MASKL — Left justified mask

Description:
MASKL(I[, KIND]) has its leftmost I bits set to 1, and the remaining bits set to 0.
Standard:
Fortran 2008 and later
Class:
Elemental function
Syntax:
RESULT = MASKL(I[, KIND])
Arguments:
I Shall be of type INTEGER.
KIND Shall be a scalar constant expression of type INTEGER.
Return value:
The return value is of type INTEGER. If KIND is present, it specifies the kind value of the return type; otherwise, it is of the default integer kind.
See also:
MASKR

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-6.3.0/gfortran/MASKL.html