Class 16: Strings

Held: Friday, 14 February 2003

Summary: Today we consider issues pertaining to strings in C, including their representation, key string procedures, and other details.

Related Pages:

• EBoard.
• Lab on Strings.

Assignments:

• Read K&R, Chapter 5.
• Read Gries, Chapter 5.

Notes:

• As many of you have probably noticed, I've updated the lab on structs to clarify some problems and to reflect our end-of-class discussion.
• Alumna Brenda Johnson is giving a talk on Fermat's little theorem today at 4:30 in Science 2424. As an odd coincidence, I saw a note on Fermat's little theorem this morning as I was looking at material for this course. One point of extra credit for attending.
• Our own Lindsey Kuper (or perhaps her similarly-named relative Lindsay) is playing at Bob's at 9:30 on Friday, 21 February 2003. One point of extra credit for attending.
• Why the last interesting union from the lab?

Overview:

• Representing strings in C.
• Important string procedures.
• Lab.

Representing Strings

Important String Procedures

• strcpy(destination, source)
• strncpy(destination, source, amount)
• strcat(destination, source)
• strcat(destination, source, amount)
• strlen(str)
• strcmp(str1, str2)
• And many more.

Lab

• Do the lab on strings.
• Be prepared to reflect.