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# Example: memset

The following example uses memset to fill a structure, about_app, with zeros, before initializing it.

#include <string.h>

    struct about_app {
         char *version;
         int field1;
         int field2;
    };

    // Global scope
         struct about_app a;
         a.field1 = 12;
         a.field2 = 13;

    // Set all fields to 0
         memset(&a, 0, sizeof(struct about_app));

    // Show that fields are set to 0
         lr_output_message("After memset field1=%d field2=%d", a.field1, a.field2);

    // Initialize the structure
         a.version = "app version 1.0";
         a.field1 = 5;
         a.field2 = 6;
         lr_output_message("Now, field1=%d field2=%d", a.field1, a.field2);

    Example: Output:
    Action.c(18): After memset field1=0 field2=0
    Action.c(23): Now, field1=5 field2=6

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