Create str_rev_stack.c

stack/str_rev_stack.c

@@ -0,0 +1,59 @@
+#include<stdio.h> 
+#include<string.h> 
+#define MAX 100	
+int top=-1;
+int item;
+char stackstring[MAX];
+void pushChar(char item);
+char popChar(void);
+int isEmpty(void);
+int isFull(void);
+
+int main()
+{
+char str[MAX];
+int i;
+printf("Input a string: ");
+gets(str);
+for(i=0;i<strlen(str);i++)
+pushChar(str[i]);
+for(i=0;i<strlen(str);i++)
+ str[i]=popChar();
+printf("Reversed String is: %s\n",str);
+return 0;
+}
+void pushChar(char item)
+{
+if(isFull())
+{
+printf("\nStack is FULL !!!\n");
+return;
+}
+top=top+1;
+stackstring[top]=item;
+}
+char popChar()
+{
+if(isEmpty())
+{
+printf("\nStack is EMPTY!!!\n");
+return 0;
+}
+item = stackstring[top];
+top=top-1;
+return item;
+}
+int isEmpty()
+{
+if(top==-1)
+return 1;
+else
+return 0;
+}
+int isFull()
+{
+if(top==MAX-1)
+return 1;
+else
+return 0;
+}