The file that provides functions ported from Unix in string.h. More...
Functions | |
| char * | strndup (const char *str, size_t n) |
| Duplicate a string. More... | |
| int | ffs (int i) |
| Return the position of the first (least significant) bit set in a word. More... | |
| char * | strrstr (const char *str, const char *substr) |
| Get the last substring occurence. More... | |
| char * | strcasestr (const char *haystack, const char *needle) |
| Locate a substring into a string, ignoring case. More... | |
| char * | strsep (char **stringp, const char *delim) |
| Implements the strsep function which is used to separate strings. More... | |
The file that provides functions ported from Unix in string.h.
| char* strndup | ( | const char * | str, |
| size_t | n | ||
| ) |
Duplicate a string.
| str | String to be duplicated |
| n | size of new duplicated string |
This function returns a pointer to a new string which is a duplicate of the string str, but only copies at most n bytes. If str is longer than n, only n bytes are copied, and a terminating null byte ('\0') is added.
Conformity: BSD
Supported OS: Windows XP.
| int ffs | ( | int | i | ) |
Return the position of the first (least significant) bit set in a word.
| i | Word to take the first bit. |
This function returns the position of the first (least significant) bit set in i. The least significant bit is position 1 and the most significant position e.g. 32 or 64. The function returns 0 if no bits are set in i, or the position of the first bit set otherwise.
Conformity: BSD
Supported OS: Windows XP.
| char* strrstr | ( | const char * | str, |
| const char * | substr | ||
| ) |
Get the last substring occurence.
| str | The string to search from. |
| substr | The substring to search. |
NULL otherwise.This function retrieves the last occurrence of substring in the string str. If str or substr are NULL, of if substr is not found in str, NULL is returned.
Conformity: Non applicable.
Supported OS: Windows XP.
| char* strcasestr | ( | const char * | haystack, |
| const char * | needle | ||
| ) |
Locate a substring into a string, ignoring case.
| haystack | The string to search in. |
| needle | The substring to find. |
This function locates the string needle into the string haystack, ignoring the case of the characters. It returns apointer to the beginning of the substring, or NULL if the substring is not found. If haystack or needle are NULL, this function returns NULL.
Conformity: Non applicable.
Supported OS: Windows XP.
| char* strsep | ( | char ** | stringp, |
| const char * | delim | ||
| ) |
Implements the strsep function which is used to separate strings.
| stringp | The pointer to the string to search in. |
| delim | The delimiter that contains characters used to find the next token. |
The strsep() function locates, in the string referenced by *stringp, the first occurrence of any character in the string delim (or the terminating `\0' character) and replaces it with a `\0'. The location of the next character after the delimiter character (or NULL, if the end of the string was reached) is stored in *stringp. The original value of stringp is returned.
An ``empty'' field (i.e., a character in the string delim occurs as the first character of *stringp) can be detected by comparing the location referenced by the returned pointer to `\0'.
If *stringp is initially NULL, strsep() returns NULL.
This function is from LibGW32C.