1 files changed, 17 insertions, 0 deletions
diff --git a/3/11_floating_point/01_fcvt.c b/3/11_floating_point/01_fcvt.c
new file mode 100644
index 0000000..a75ff48
--- /dev/null
+++ b/3/11_floating_point/01_fcvt.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+double fcvt(int i, float *fp, double *dp, long *lp) {
+    float f = *fp; double d = *dp; long l = *lp;
+    *lp = (long)    d; // double->long
+    *fp = (float)   i; // int->float
+    *dp = (double)  l; // long->double
+    return (double) f; // float->double
+}
+
+int main(void) {
+    float f = 0.5f; double d = 1.0; long l = 1;
+
+    float *fp = &f; double *dp = &d; long *lp = &l;
+
+    fcvt(42, fp, dp, lp);
+    return 0;
+}