From a9baddd7d07b9fe15e212985a808a79773ec72e4 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sat, 19 Mar 2011 22:26:06 -0400 Subject: initial check-in, taken from old libc svn repo with significant additions --- sscanf.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 sscanf.c (limited to 'sscanf.c') diff --git a/sscanf.c b/sscanf.c new file mode 100644 index 0000000..a692b50 --- /dev/null +++ b/sscanf.c @@ -0,0 +1,90 @@ +#include +#include +#include +#include + +#define TEST(r, f, x, m) ( \ +((r) = (f)) == (x) || \ +(printf(__FILE__ ":%d: %s failed (" m ")\n", __LINE__, #f, r, x), err++, 0) ) + +#define TEST_S(s, x, m) ( \ +!strcmp((s),(x)) || \ +(printf(__FILE__ ":%d: [%s] != [%s] (%s)\n", __LINE__, s, x, m), err++, 0) ) + +#define TEST_F(x) ( \ +TEST(i, sscanf(# x, "%lf", &d), 1, "got %d fields, expected %d"), \ +TEST(t, d, (double)x, "%g != %g") ) + +int test_sscanf(void) +{ + int i; + int err=0; + char a[100], b[100], *s; + int x, y, z, u, v; + double d, t; + long lo[10]; + + TEST(i, sscanf("hello, world\n", "%s %s", a, b), 2, "only %d fields, expected %d"); + TEST_S(a, "hello,", ""); + TEST_S(b, "world", ""); + + TEST(i, sscanf("hello, world\n", "%[hel]%s", a, b), 2, "only %d fields, expected %d"); + TEST_S(a, "hell", ""); + TEST_S(b, "o,", ""); + + TEST(i, sscanf("hello, world\n", "%[hel] %s", a, b), 2, "only %d fields, expected %d"); + TEST_S(a, "hell", ""); + TEST_S(b, "o,", ""); + + a[8] = 'X'; + a[9] = 0; + TEST(i, sscanf("hello, world\n", "%8c%8c", a, b), 1, "%d fields, expected %d"); + TEST_S(a, "hello, wX", ""); + + TEST(i, sscanf("56789 0123 56a72", "%2d%d%*d %[0123456789]\n", &x, &y, a), 3, "only %d fields, expected %d"); + TEST(i, x, 56, "%d != %d"); + TEST(i, y, 789, "%d != %d"); + TEST_S(a, "56", ""); + + TEST(i, sscanf("011 0x100 11 0x100 100", "%i %i %o %x %x\n", &x, &y, &z, &u, &v), 5, "only %d fields, expected %d"); + TEST(i, x, 9, "%d != %d"); + TEST(i, y, 256, "%d != %d"); + TEST(i, z, 9, "%d != %d"); + TEST(i, u, 256, "%d != %d"); + TEST(i, v, 256, "%d != %d"); + + TEST(i, sscanf("20 xyz", "%d %d\n", &x, &y), 1, "only %d fields, expected %d"); + TEST(i, x, 20, "%d != %d"); + + TEST(i, sscanf("xyz", "%d\n", &x, &y), 0, "got %d fields, expected no match (%d)"); + + TEST(i, sscanf("", "%d\n", &x, &y), -1, "got %d fields, expected input failure (%d)"); + + TEST(i, sscanf(" 12345 6", "%2d%d%d", &x, &y, &z), 3, "only %d fields, expected %d"); + TEST(i, x, 12, "%d != %d"); + TEST(i, y, 345, "%d != %d"); + TEST(i, z, 6, "%d != %d"); + + TEST(i, sscanf(" 0x12 0x34", "%5i%2i", &x, &y), 1, "got %d fields, expected %d"); + TEST(i, x, 0x12, "%d != %d"); + + TEST_F(123); + TEST_F(123.0); + TEST_F(123.0e+0); + TEST_F(123.0e+4); + TEST_F(1.234e1234); + TEST_F(1.234e-1234); + TEST_F(1.234e56789); + TEST_F(1.234e-56789); + TEST_F(-0.5); + TEST_F(0.1); + TEST_F(0.2); + TEST_F(0.1e-10); + TEST_F(0x1234p56); + + TEST(i, sscanf("10e", "%lf", &d), 0, "got %d fields, expected no match (%d)"); + TEST(i, sscanf("", "%lf\n", &d), -1, "got %d fields, expected input failure (%d)"); + + + return err; +} -- cgit v1.2.1