Trivial use of X-macros for printfs
suggest change/* define a list of preprocessor tokens on which to call X */ #define X_123 X(1) X(2) X(3) /* define X to use */ #define X(val) printf("X(%d) made this print\n", val); X_123 #undef X /* good practice to undef X to facilitate reuse later on */
This example will result in the preprocessor generating the following code:
printf("X(%d) made this print\n", 1); printf("X(%d) made this print\n", 2); printf("X(%d) made this print\n", 3);
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