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-rw-r--r--test/monniaux/varargs/varargs.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/test/monniaux/varargs/varargs.c b/test/monniaux/varargs/varargs.c
new file mode 100644
index 00000000..7aa95799
--- /dev/null
+++ b/test/monniaux/varargs/varargs.c
@@ -0,0 +1,34 @@
+#include <stdio.h>
+#include <stdarg.h>
+
+void simple_printf(const char* fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+
+ while (*fmt != '\0') {
+ if (*fmt == 'd') {
+ int i = va_arg(args, int);
+ printf("%d\n", i);
+ } else if (*fmt == 'c') {
+ // A 'char' variable will be promoted to 'int'
+ // A character literal in C is already 'int' by itself
+ int c = va_arg(args, int);
+ printf("%c\n", c);
+ } else if (*fmt == 'f') {
+ double d = va_arg(args, double);
+ printf("%f\n", d);
+ } else if (*fmt == 'l') {
+ long d = va_arg(args, long);
+ printf("%ld\n", d);
+ }
+ ++fmt;
+ }
+
+ va_end(args);
+}
+
+int main(void)
+{
+ simple_printf("dlcff", 3, 4L, 'a', 1.999, 42.5);
+}