1 files changed, 54 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/SNIP/tabtrick.c b/reference/C/CONTRIB/SNIP/tabtrick.c
new file mode 100755
index 0000000..9186070
--- /dev/null
+++ b/reference/C/CONTRIB/SNIP/tabtrick.c
@@ -0,0 +1,54 @@
+/*
+**  TABTRICKs.C - Demonstrates how to use printf() for columnar formatting
+*/
+
+#include <stdio.h>
+#include <string.h>
+
+#define putnum(i) putchar(i+'0')
+
+void main()       /* void main() is not standard C, but avoids warnings */
+{
+      char *firstname[] = { "Aloysius",   "Bob",   "Dennis",  NULL },
+           *lastname[]  = { "Fuddrucker", "Stout", "Ritchie", NULL };
+      int   score[]     = { -10,          70,      200,       0    },
+            i, tabwidth;
+
+      printf("%15sStudent Name%30s\n\n", "", "Test Score");
+      for (i = 0; NULL != lastname[i]; ++i)
+      {
+            tabwidth = 36                             /* spaces to tab  */
+                       -2                             /* allow for ", " */
+                       -strlen(lastname[i]);          /* lastname space */
+            printf("%15s%s, %-*s%3d\n",
+                  "", lastname[i], tabwidth, firstname[i], score[i]);
+      }
+
+      /* print a ruler to make things clearer   */
+
+      puts("");
+      for (i = 0; i < 71; ++i)
+      {
+            if (i == 10 * (i / 10))
+                  putnum(i / 10);
+            else  putchar(' ');
+      }
+      puts("");
+      for (i = 0; i < 71; ++i)
+            putnum(i % 10);
+}
+
+/*
+
+RESULTS:
+
+               Student Name                    Test Score
+
+               Fuddrucker, Aloysius                -10
+               Stout, Bob                           70
+               Ritchie, Dennis                     200
+
+0         1         2         3         4         5         6         7
+01234567890123456789012345678901234567890123456789012345678901234567890
+
+*/