Class: CSE 130 Subject: computer-science computer-systems Date: 2025-04-14 Teacher: **Dr. Veenstra

C Strings, Variables and Unix File IO

C Strings

a c string is a bunch of bytes ending with 0

Problems

Need to move through the string to get it’s length
Strings can’t have zero bytes
- i.e.

What is sizeof(t)?

10

What is strlen(t)?

3

Static Keyword

int main(void) {
	static char *t;
	...
 
	return 0;
}

it acts both as a local scope var and can be used as “global storage”
like other global variables, it gets initialized to 0(0x00000000)