strdupa(x)   strcpy(alloca(strlen(x)+1),x)

Copies a string to a new position.

memcpy (void __restrict dest, const void restrict src, size_t n)

void  

memmove (void dest, const void src, size_t n)

void  

Copies a string (overlapping allowed).

memset (void s, int c, size_t n)

void  

Copies a character to the specified memory area.

memcmp (const void s1, const void s2, size_t n)

int 

Compares two memory areas.

memchr (const void s, int c, size_t n)

void  

Searches for a character in the specified memory area.

strcpy (char dest, const char src)

char  

strncpy (char dest, const char src, size_t n)

char  

Copies n characters of a string.

strcat (char dest, const char src)

char  

strncat (char dest, const char src, size_t n)

char  

Appends the first n bytes of a string to another one.

strcmp (const char s1, const char s2)

int 

Compares two strings by characters.

strncmp (const char s1, const char s2, size_t n)

int 

Compares the first n characters of two strings.

strcoll (const char s1, const char s2)

int 

Compares two strings by character for the program’s current locale.

strcoll_l (const char s1, const char s2, locale_t locale)

int 

Compares two strings by character for the specified locale.

strxfrm (char dest, const char src, size_t n)

size_t 

Converts the first n characters of the source string pointed to by src based on the program’s current locale specified by LC_COLLATE, and places them in the destination string pointed to by dest.

strchr (const char s, int c)

char  

Locates the first occurrence of a character in a string.

strrchr (const char s, int c)

char  

Locates the last occurrence of a character in a string.

strcspn (const char s, const char reject)

size_t 

Obtains the length of the initial segment of a string that contains characters not in reject.

strspn (const char s, const char accept)

size_t 

Obtains the length of the initial segment of a string that contains characters in accept.

strpbrk (const char s, const char accept)

char  

strstr (const char haystack, const char needle)

char  

Searches for a needle string in its haystack string.

strtok (char str, const char delim)

char  

strlen (const char s)

size_t 

Calculates the length of a string.

strerror (int errnum)

char  

strtok_r (char str, const char delim, char **saveptr)

char  

Separates a string into a series of tokens separated by a delimiter, with the saveptr parameter specified.

strerror_l (int errnum, locale_t locale)

char  

strerror_r (int errnum, char buf, size_t buflen)

char  

stpcpy (char dest, const char src)

char  

Copies a string.

stpncpy (char dest, const char src, size_t n)

char  

strnlen (const char s, size_t maxlen)

size_t 

Calculates the length of a string.

strdup (const char s)

char  

Copies a string to a new position.

strndup (const char s, size_t n)

char  

Copies n characters of a string to a new position.

strsignal (int sig)

char  

memccpy (void restrict dest, const void __restrict src, int c, size_t n)

void  

Copies a memory area to another one.

strsep (char *stringp, const char delim)

char  

strlcat (char d, const char s, size_t n)

size_t 

Appends the first n bytes of a string to another one.

strlcpy (char d, const char s, size_t n)

size_t 

Copies a string.

strverscmp (const char s1, const char s2)

int 

Compares strings of two versions (string 1 and string 2) and returns the comparison result.

strcasestr (const char haystack, const char needle)

char  

Searches for a needle string in its haystack string and returns a pointer.

memmem (const void haystack, size_t haystacklen, const void needle, size_t needlelen)

void  

memrchr (const void s, int c, size_t n)

void  

mempcpy (void dest, const void src, size_t n)

void  

Copies a string (overlapping not allowed).