Defined in header <string.h> | ||
---|---|---|
char *strrchr( const char *str, int ch ); |
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'
.
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
#include <string.h> #include <stdio.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
- 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 |
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