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string(3) Library Functions Manual string(3)

NAME

stpcpy, strcasecmp, strcat, strchr, strcmp, strcoll, strcpy, strcspn, strdup, strfry, strlen, strncat, strncmp, strncpy, strncasecmp, strpbrk, strrchr, strsep, strspn, strstr, strtok, strxfrm, index, rindex - string operations

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <strings.h>

Compare the strings s1 and s2 ignoring case.
Compare the first n bytes of the strings s1 and s2 ignoring case.
Identical to strchr(3).
Identical to strrchr(3).
#include <string.h>
Copy a string from src to dest, returning a pointer to the end of the resulting string at dest.
Append the string src to the string dest, returning a pointer dest.
Return a pointer to the first occurrence of the character c in the string s.
Compare the strings s1 with s2.
Compare the strings s1 with s2 using the current locale.
Copy the string src to dest, returning a pointer to the start of dest.
Calculate the length of the initial segment of the string s which does not contain any of bytes in the string reject,
Return a duplicate of the string s in memory allocated using malloc(3).
Randomly swap the characters in string.
Return the length of the string s.
char *strncat(char dest[restrict strlen(.dest) + .n + 1],
       const char src[restrict .n],
       size_t n);
Append at most n bytes from the unterminated string src to the string dest, returning a pointer to dest.
Compare at most n bytes of the strings s1 and s2.
Return a pointer to the first occurrence in the string s of one of the bytes in the string accept.
Return a pointer to the last occurrence of the character c in the string s.
Extract the initial token in stringp that is delimited by one of the bytes in delim.
Calculate the length of the starting segment in the string s that consists entirely of bytes in accept.
Find the first occurrence of the substring needle in the string haystack, returning a pointer to the found substring.
Extract tokens from the string s that are delimited by one of the bytes in delim.
size_t strxfrm(char dest[restrict .n], const char src[restrict .n],
        size_t n);
Transforms src to the current locale and copies the first n bytes to dest.

Obsolete functions

char *strncpy(char dest[restrict .n], const char src[restrict .n],
       size_t n);
Copy at most n bytes from string src to dest, returning a pointer to the start of dest.

DESCRIPTION

The string functions perform operations on null-terminated strings. See the individual man pages for descriptions of each function.

SEE ALSO

bstring(3), stpcpy(3), strcasecmp(3), strcat(3), strchr(3), strcmp(3), strcoll(3), strcpy(3), strcspn(3), strdup(3), strfry(3), strlen(3), strncasecmp(3), strncat(3), strncmp(3), strncpy(3), strpbrk(3), strrchr(3), strsep(3), strspn(3), strstr(3), strtok(3), strxfrm(3)

2023-01-22 Linux man-pages 6.04