strrchr
From cppreference.com
|
Defined in header
<string.h>
|
||
|
char
*
strrchr
(
const
char
*
str,
int
ch
)
;
|
(1) | |
|
/*QChar*/
*
strrchr
(
/*QChar*/
*
str,
int
ch
)
;
|
(2) | (since C23) |
1)
Finds the last occurrence of
ch
(after conversion to
char
as if by
(
char
)
ch
) in the null-terminated byte string pointed to by
str
(each character interpreted as
unsigned
char
). The terminating null character is considered to be a part of the string and can be found if searching for
'
\0
'
.
2)
Type-generic function equivalent to
(1)
. Let
T
be an unqualified character object type.
-
-
If
stris of type const T * , the return type is const char * . -
Otherwise, if
stris of type T * , the return type is char * . - Otherwise, the behavior is undefined.
-
If
The behavior is undefined if str is not a pointer to a null-terminated byte string.
Parameters
| str | - | pointer to the null-terminated byte string to be analyzed |
| ch | - | character to search for |
Return value
Pointer to the found character in str , or null pointer if no such character is found.
Example
Run this code
#include <stdio.h> #include <string.h> int main(void) { char szSomeFileName[] = "foo/bar/foobar.txt"; char* pLastSlash = strrchr(szSomeFileName, '/'); char* pszBaseName = pLastSlash ? pLastSlash + 1 : szSomeFileName; printf("Base Name: %s", pszBaseName); }
Output:
Base Name: foobar.txt
References
- C23 standard (ISO/IEC 9899:2024):
-
- 7.24.5.5 The strrchr function (p: TBD)
- C17 standard (ISO/IEC 9899:2018):
-
- 7.24.5.5 The strrchr function (p: TBD)
- C11 standard (ISO/IEC 9899:2011):
-
- 7.24.5.5 The strrchr function (p: 368-369)
- C99 standard (ISO/IEC 9899:1999):
-
- 7.21.5.5 The strrchr function (p: 331)
- C89/C90 standard (ISO/IEC 9899:1990):
-
- 4.11.5.5 The strrchr function
See also
|
finds the first occurrence of a character
(function) |
|
|
finds the first location of any character in one string, in another string
(function) |
|
|
C++ documentation
for
strrchr
|
|