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-rw-r--r--reference/C/CONTRIB/OR_PRACTICAL_C/06_2.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/reference/C/CONTRIB/OR_PRACTICAL_C/06_2.c b/reference/C/CONTRIB/OR_PRACTICAL_C/06_2.c
new file mode 100644
index 0000000..1bdfb0f
--- /dev/null
+++ b/reference/C/CONTRIB/OR_PRACTICAL_C/06_2.c
@@ -0,0 +1,39 @@
+#include <stdio.h>
+char line[100];/* line of text from input */
+
+int result; /* the result of the calculations */
+char operator; /* operator the user specified */
+int value; /* value specified after the operator */
+main()
+{
+ result = 0; /* initialize the result */
+
+ /* loop forever (or until break reached) */
+ while (1) {
+ (void) printf("Result: %d\n", result);
+ (void) printf("Enter operator and number: ");
+
+ (void) fgets(line, sizeof(line), stdin);
+ (void) sscanf(line, "%c %d", &operator, &value);
+
+ if ((operator == 'q') || (operator == 'Q'))
+ break;
+
+ if (operator == '+') {
+ result += value;
+ } else if (operator == '-') {
+ result -= value;
+ } else if (operator == '*') {
+ result *= value;
+ } else if (operator == '/') {
+ if (value == 0) {
+ (void)printf("Error:Divide by zero\n");
+ (void)printf(" operation ignored\n");
+ } else
+ result /= value;
+ } else {
+ (void) printf("Unknown operator %c\n", operator);
+ }
+ }
+ return (0);
+}