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feat: (str) str_clone

This commit is contained in:
thetek 2023-02-15 09:50:36 +01:00
parent 4048a4d2b9
commit baac095e9d
2 changed files with 21 additions and 4 deletions
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1
lib/inc/str.h
View File

@ -31,5 +31,6 @@ ssize_t str_pos (const str_t *str, const char *find); /* find the index of a sub
bool str_is_blank (const str_t *str); /* check if a string only consists of whitespace characters. */
void str_downcase (str_t *str); /* transform all uppercase characters in a str_t string to lowercase */
void str_upcase (str_t *str); /* transform all lowercase characters in a str_t string to uppercase */
void str_clone (const str_t *str, str_t *new); /* clone the contents of a str_t string into a new str_t string. */
#endif // CUTILS_STR_H_

24
lib/str.c
View File

@ -10,7 +10,8 @@
/**
* initialize a str_t string and allocte some memory for the data
*
* @param str: a pointer to the string to initialize
* @param str: a pointer to the string to initialize. `str` has to be
* caller-allocated.
*/
void
str_new (str_t *str)
@ -25,7 +26,8 @@ str_new (str_t *str)
* initialize a str_t string with a given capacity (allocation size). can be
* used in oder to reduce the amount of calls to realloc.
*
* @param str: a pointer to the string to initialize
* @param str: a pointer to the string to initialize. `str` has to be
* caller-allocated.
*/
void
str_new_cap (str_t *str, size_t want_cap)
@ -43,7 +45,8 @@ str_new_cap (str_t *str, size_t want_cap)
* initialize a str_t string with a given data. the data will be copied into
* the string.
*
* @param str: a pointer to the string to initialize
* @param str: a pointer to the string to initialize. `str` has to be
* caller-allocated.
* @param src: the data to put into the string
*/
inline void
@ -56,7 +59,8 @@ str_new_from (str_t *str, const char *src)
* initialize a str_t string with a given data. the data will be copied into
* the string. the length of the data is provided as a parameter.
*
* @param str: a pointer to the string to initialize
* @param str: a pointer to the string to initialize. `str` has to be
* caller-allocated.
* @param src: the data to put into the string
* @param len: the length of `src`. undefined behaviour occurs if `len !=
* strlen (src)`
@ -283,3 +287,15 @@ str_upcase (str_t *str)
{
strupcase (str->str);
}
/**
* clone the contents of a str_t string into a new str_t string.
*
* @param str: the original str_t string
* @param new: the new str_t string. `new` has to be caller-allocated.
*/
inline void
str_clone (const str_t *str, str_t *new)
{
str_new_from_len (new, str->str, str->len);
}