Use %.17f to format floats/doubles

gvanrossum · gvanrossum · commit 104be4a4a797 · 1998-04-03T21:13:02.000Z
diff --git a/Modules/cPickle.c b/Modules/cPickle.c
@@ -922,7 +922,7 @@ save_float(Picklerobject *self, PyObject *args) {
     {
         char c_str[250];
         c_str[0] = FLOAT;
-        sprintf(c_str + 1, "%f\n", x);
+        sprintf(c_str + 1, "%.17g\n", x);
 
         if ((*self->write_func)(self, c_str, strlen(c_str)) < 0)
             return -1;

Original file line number	Diff line number	Diff line change
`@@ -922,7 +922,7 @@ save_float(Picklerobject self, PyObject args) {`
`922`	`922`	`{`
`923`	`923`	`char c_str[250];`
`924`	`924`	`c_str[0] = FLOAT;`
`925`		`- sprintf(c_str + 1, "%f\n", x);`
	`925`	`+ sprintf(c_str + 1, "%.17g\n", x);`
`926`	`926`
`927`	`927`	`if ((*self->write_func)(self, c_str, strlen(c_str)) < 0)`
`928`	`928`	`return -1;`