diff options
Diffstat (limited to 'reference/C/EXAMPLES/global.c')
-rw-r--r-- | reference/C/EXAMPLES/global.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/reference/C/EXAMPLES/global.c b/reference/C/EXAMPLES/global.c new file mode 100644 index 0000000..6ed7ca2 --- /dev/null +++ b/reference/C/EXAMPLES/global.c @@ -0,0 +1,28 @@ +/************************************************************************ + * + * Purpose: Demonstrate global and internal variables + * Author: M J Leslie + * date: 02-Feb-94 + * + ************************************************************************/ + +int counter = 0; /* global because we are outside + all blocks. */ +int func(void); + +main() +{ + counter++; /* global because it has not been + declared within this block */ + printf("counter is %2d before the call to func\n", counter); + + func(); /* call a function. */ + + printf("counter is %2d after the call to func\n", counter); +} + +int func(void) +{ + int counter = 10; /* local. */ + printf("counter is %2d within func\n", counter); +} |