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authorRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
committerRoland McGrath <roland@gnu.org>1995-02-18 01:27:10 +0000
commit28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch)
tree15f07c4c43d635959c6afee96bde71fb1b3614ee /manual/examples/add.c
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initial import
Diffstat (limited to 'manual/examples/add.c')
-rw-r--r--manual/examples/add.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/manual/examples/add.c b/manual/examples/add.c
new file mode 100644
index 0000000000..e4b1bba365
--- /dev/null
+++ b/manual/examples/add.c
@@ -0,0 +1,30 @@
+#include <stdarg.h>
+#include <stdio.h>
+
+int
+add_em_up (int count,...)
+{
+  va_list ap;
+  int i, sum;
+
+  va_start (ap, count);		/* Initialize the argument list. */
+
+  sum = 0;
+  for (i = 0; i < count; i++)
+    sum += va_arg (ap, int);	/* Get the next argument value. */
+
+  va_end (ap);			/* Clean up. */
+  return sum;
+}
+
+int
+main (void)
+{
+  /* This call prints 16. */
+  printf ("%d\n", add_em_up (3, 5, 5, 6));
+
+  /* This call prints 55. */
+  printf ("%d\n", add_em_up (10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10));
+
+  return 0;
+}