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

[musl] / src / stdlib / ecvt.c

diff --git a/src/stdlib/ecvt.c b/src/stdlib/ecvt.c
new file mode 100644 (file)
index 0000000..48e70cd
--- /dev/null
+++ b/src/stdlib/ecvt.c
@@ -0,0 +1,19 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+char *ecvt(double x, int n, int *dp, int *sign)
+{
+       static char buf[16];
+       char tmp[32];
+       int i, j;
+
+       if (n-1U > 15) n = 15;
+       sprintf(tmp, "%.*e", n-1, x);
+       i = *sign = (tmp[0]=='-');
+       for (j=0; tmp[i]!='e'; j+=(tmp[i++]!='.'))
+               buf[j] = tmp[i];
+       buf[j] = 0;
+       *dp = atoi(tmp+i+1);
+
+       return buf;
+}