Pointers and Arrays

• 5.1 get next integer from input to *pn
• 5.2 get next float from input to *pn
• 5.3 strcat(s,t) copies the string t to the end of s
• 5.4 strend returns 1 if string t occurs at the end of the string s
• 5.5 simple versions of strncpy, strncat, and strncmp
• 5.6 Find the pattern using pointers
• 5.7 Readlines using array
• 5.8 program which has day of the year and month day
• 5.10 expr, evaluate rpn from command line
• 5.11 entab and detab which accepts arguments
• 5.12 entab -m + which accepts arguments
• 5.13 tail prints the last n lines of input
• 5.14 sorting in reverse (decreasing) order
• 5.15 fold upper and lower case together
• 5.16 -d makes comparison on letters, numbers, blanks
• 5.17 Sorting with options
• 5.18 recover from input errors
• 5.19 undcl does not add redundant parentheses
• 5.20 dcl handling declarations with function argument types, qualifiers