inital commit

1 files changed, 55 insertions, 0 deletions

diff --git a/2.1.c b/2.1.c
new file mode 100644
index 0000000..d029e84
--- /dev/null
+++ b/2.1.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <limits.h>
+#include <float.h>
+
+int 
+main(void)
+{
+  unsigned char c;
+  unsigned short s;
+  unsigned int i;
+  unsigned long l;
+
+  c = ~0;
+  s = ~0;
+  i = ~0;
+  l = ~0;
+
+  c >>= 1;
+  s >>= 1;
+  i >>= 1;
+  l >>= 1;
+
+  /* signed values */
+
+  printf("limits char   min: %20d, max: %20d\n", CHAR_MIN, CHAR_MAX);
+  printf("comput char   min: %20d, max: %20d\n", -c-1, c);
+
+  printf("limits short  min: %20d, max: %20d\n", SHRT_MIN, SHRT_MAX);
+  printf("comput short  min: %20d, max: %20d\n", -s-1, s);
+
+  printf("limits int    min: %20d, max: %20d\n", INT_MIN, INT_MAX);
+  printf("comput int    min: %20d, max: %20d\n", -i-1, i);
+
+  printf("limits long   min: %20ld, max: %20ld\n", LONG_MIN, LONG_MAX);
+  printf("comput long   min: %20ld, max: %20ld\n", -l-1, l);
+
+  printf("limits float  min: %20g, max: %20g\n", FLT_MIN, FLT_MAX);
+  printf("limits double min: %20g, max: %20g\n", DBL_MIN, DBL_MAX);
+
+  /* unsigned values */
+
+  printf("limits uchar  min: %20d, max: %20u\n", 0, UCHAR_MAX);
+  printf("comput uchar  min: %20d, max: %20u\n", 0, c*2+1);
+
+  printf("limits ushort min: %20d, max: %20u\n", 0, USHRT_MAX);
+  printf("comput ushort min: %20d, max: %20u\n", 0, s*2+1);
+
+  printf("limits uint   min: %20d, max: %20u\n", 0, UINT_MAX);
+  printf("comput uint   min: %20d, max: %20u\n", 0, i*2+1);
+
+  printf("limits ulong  min: %20d, max: %20lu\n", 0, ULONG_MAX);
+  printf("comput ulong  min: %20d, max: %20lu\n", 0, l*2+1);
+
+  return 0;
+}