Bifalgorithm post · Computer science one · Arrays of Strings

How can you turn part of a string into a character pointer?

How can you turn part of a string into a character pointer? (Computer science one · Arrays of Strings) — "Using the referencing operator, we can turn the 8th c…

Ideas in this flowchart

Using the referencing operator to extract part of a character array as a character pointer
The expression &name[7] points to the 8th character of name
Full example of allocating and copying the middle name
name is initialized with the string "Thomas Alan Waits"
middleName is allocated space for five characters
strncpy copies five characters from &name[7] into middleName
The fourth position of middleName is manually set to '\0'
The allocation includes space for a null-terminating character
In this case, strncpy does not insert the null-terminating character automatically
After termination, middleName holds "Alan"

Bifalgorithm

Feed/

How can you turn part of a string into a character pointer?

No cover

Channel

Computer science one

1 page

sam23

Ebook2w

"Using the referencing operator, we can turn the 8th character into a character pointer, &name[7]. A full example:\n\n1 char name[] = \"Thomas Alan Waits\";\n\n2 char *middleName = (char *) malloc(sizeof(char) * 5);\n\n3 strncpy(middleName, &name[7], 5);\n\n4 middleName[4] = '\\0';\n\n5 //middleName now holds \"Alan\"\n\nIn the call to malloc(), we included space for a null-terminating character. Furthermore, strncpy() does not insert the null-terminating character for us in this case. In line 4 we manually insert it."

Flowchart preview

👍

0 comments0 shares