The index is an intrinsic function called by:
n = index( a1, a2 ) |
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a1 |
character |
Input |
Main string |
a2 |
character |
Input | |
Return value |
INTEGER |
Output |
n>0: Index of first occurrence of a2 in a1 n=0: a2 does not occur in a1. |
If declared INTEGER*8, index() will return an INTEGER*8 value when compiled for a 64-bit environment and character variable a1 is a very large character string (greater than 2 Gigabytes).