Implement missing 'space' formatting flag

This flag causes space (padding) to be reserved for the sign even if the
number is positive. It is basically the same as the 'plus' flag except that
a space is displayed instead of a plus sign. The 'plus' flag takes precedence.

1 files changed, 3 insertions, 0 deletions

diff --git a/tests/printf/test.c b/tests/printf/test.c
index b01a99db..1c8ad9f7 100644
--- a/tests/printf/test.c
+++ b/tests/printf/test.c
@@ -11,9 +11,12 @@ int main() {
   printf("Preceding with blanks: %10d %10d\n", 1977, -1977);
   printf("Preceding with zeros: %010d %010d\n", 1977, -1977);
   printf("Force sign: %+d %+d %+6d %+6d\n", 1977, -1977, 1977, -1977);
+  printf("Force sign or space: % d % d % 6d % 6d\n", 1977, -1977, 1977, -1977);
+  printf("Sign overrides space: % +d % +d % +6d % +6d\n", 1977, -1977, 1977, -1977);
   printf("Some different radixes: %d %x %o %#x %#o\n", 100, 100, 100, 100, 100);
   printf("floats: %4.2f %+.0e %E %08.2f\n", 3.1416, 3.1416, 3.1416, 3.1416);
   printf("negative floats: %4.2f %+.0e %E %08.2f\n", -3.1416, -3.1416, -3.1416, -3.1416);
+  printf("Force sign or space: % .2f % .2f % 6.2f % 6.2f\n", 3.1416, -3.1416, 3.1416, -3.1416);
   printf("Width trick: %*d\n", 5, 10);
   printf("%s %%\n", "A string");
   printf("Null string: %7s\n", NULL);