Fortran User's Guide

Hollerith

Accepted forms for Hollerith data are:

nH...

'...'H

"..."H

nL...

'...'L

"..."L

nR...

'...'R

"..."R

Above, "..." is a string of characters and n is the character count.

Examples: Octal and hexadecimal constants.

Boolean Constant 

Internal Octal for 32-bit word 

 0B 00000000000
 77740B 00000077740
 X"ABE" 00000005276
 X"-340" 37777776300
 X'1 2 3' 00000000443
 X'FFFFFFFFFFFFFFFF' 37777777777

Examples: Octal and hexadecimal in assignment statements.

 i = 1357B
 j = X"28FF"
 k = X'-5A'

Use of an octal or hexadecimal constant in an arithmetic expression can produce undefined results and do not generate syntax errors.