Macros for SAS Application Developers
https://github.com/sasjs/core
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mf_increment.sas
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1/**
2 @file
3 @brief Increments a macro variable
4 @details Useful outside of do-loops - will increment a macro variable every
5 time it is called.
6
7 Example:
8
9 %let cnt=1;
10 %put We have run %mf_increment(cnt) lines;
11 %put Now we have run %mf_increment(cnt) lines;
12 %put There are %mf_increment(cnt) lines in total;
13
14 @param [in] macro_name The name of the macro variable to increment
15 @param [in] incr= (1) The amount to add or subtract to the macro
16
17 <h4> Related Files </h4>
18 @li mf_increment.test.sas
19
20**/
21
22%macro mf_increment(macro_name,incr=1);
23
24 /* iterate the value */
25 %let &macro_name=%eval(&&&macro_name+&incr);
26 /* return the value */
27 &&&macro_name
28
29%mend mf_increment;