add deprecated (removed from posix) [efg]cvt() functions

these have not been heavily tested, but they should work as described
in the old standards. probably broken for non-finite values...

1 files changed, 8 insertions, 0 deletions

diff --git a/src/stdlib/gcvt.c b/src/stdlib/gcvt.c
new file mode 100644
index 00000000..6c075e25
--- /dev/null
+++ b/src/stdlib/gcvt.c
@@ -0,0 +1,8 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+char *gcvt(double x, int n, char *b)
+{
+	sprintf(b, "%.*g", n, x);
+	return b;
+}