CODEWITHSUNDEEP
carraysstringaddition
user3482407
user3482407

Reputation: 319

C add hex-value to string, no library

I have a function that requires to send a string with <cr> at the end. How can I directly join the string-part with the <cr> = 0x0D in C without using any library function? (I am using uC.)

Example array/string "ABC\x0D", but 0x0D should be not sent as ascii but as <cr>.

Upvotes: 0

Views: 1064

Answers (1)

Serge Ballesta
Serge Ballesta

Reputation: 148975

Provided you have enough room in your array, you simply put at the end of the string a 0x0d and a \0. Example :

char str[8] = "ABCDEF";

This string contains 6 characters and the terminating null : it can accept the cr. How to do that :

str[6] = '\r'; /* or 0x0d or 13 */
str[7] = '\0'; /* or 0x0 or 0 */

That's all...

Upvotes: 2

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