Difference between revisions of "cpp/string/byte/strrchr"
From cppreference.com
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| − | {{cpp/title| strrchr}} | + | {{cpp/title|strrchr}} |
{{cpp/string/byte/navbar}} | {{cpp/string/byte/navbar}} | ||
{{dcl begin}} | {{dcl begin}} | ||
| − | {{dcl header | cstring}} | + | {{dcl header|cstring}} |
| − | {{dcl | | + | {{dcl| |
const char* strrchr( const char* str, int ch ); | const char* strrchr( const char* str, int ch ); | ||
}} | }} | ||
| − | {{dcl | 1= | + | {{dcl|1= |
char* strrchr( char* str, int ch ); | char* strrchr( char* str, int ch ); | ||
}} | }} | ||
{{dcl end}} | {{dcl end}} | ||
| − | Finds the last occurrence of {{ | + | Finds the last occurrence of {{c|ch}} (after conversion to {{c|char}}) in the byte string pointed to by {{c|str}}. The terminating null character is considered to be a part of the string and can be found if searching for {{c|'\0'}}. |
===Parameters=== | ===Parameters=== | ||
{{par begin}} | {{par begin}} | ||
| − | {{par | str | pointer to the null-terminated byte string to be analyzed}} | + | {{par|str|pointer to the null-terminated byte string to be analyzed}} |
| − | {{par | ch | character to search for}} | + | {{par|ch|character to search for}} |
{{par end}} | {{par end}} | ||
===Return value=== | ===Return value=== | ||
| − | Pointer to the found character in {{ | + | Pointer to the found character in {{c|str}}, or null pointer if no such character is found. |
===Example=== | ===Example=== | ||
{{example | {{example | ||
| − | + | |code= | |
| − | + | ||
| − | + | ||
#include <cstring> | #include <cstring> | ||
| + | #include <iostream> | ||
int main() | int main() | ||
| Line 33: | Line 32: | ||
char input[] = "/home/user/hello.c"; | char input[] = "/home/user/hello.c"; | ||
char* output = std::strrchr(input, '/'); | char* output = std::strrchr(input, '/'); | ||
| − | if(output) | + | if (output) |
| − | std::cout << output+1 << '\n'; | + | std::cout << output + 1 << '\n'; |
} | } | ||
| − | + | |output= | |
hello.c | hello.c | ||
}} | }} | ||
| Line 42: | Line 41: | ||
===See also=== | ===See also=== | ||
{{dsc begin}} | {{dsc begin}} | ||
| − | {{dsc inc | cpp/string/byte/dsc strchr}} | + | {{dsc inc|cpp/string/byte/dsc strchr}} |
| − | {{dsc inc | cpp/string/wide/dsc wcsrchr}} | + | {{dsc inc|cpp/string/wide/dsc wcsrchr}} |
| − | {{dsc inc | cpp/string/basic_string/dsc rfind}} | + | {{dsc inc|cpp/string/basic_string/dsc rfind}} |
| − | {{dsc see c | c/string/byte/strrchr}} | + | {{dsc see c|c/string/byte/strrchr}} |
{{dsc end}} | {{dsc end}} | ||
| − | + | {{langlinks|de|es|fr|it|ja|pt|ru|zh}} | |
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Latest revision as of 14:41, 6 June 2023
| Defined in header <cstring>
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| const char* strrchr( const char* str, int ch ); |
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| char* strrchr( char* str, int ch ); |
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Finds the last occurrence of ch (after conversion to char) in the byte string pointed to by str. The terminating null character is considered to be a part of the string and can be found if searching for '\0'.
Contents |
[edit] Parameters
| str | - | pointer to the null-terminated byte string to be analyzed |
| ch | - | character to search for |
[edit] Return value
Pointer to the found character in str, or null pointer if no such character is found.
[edit] Example
Run this code
#include <cstring> #include <iostream> int main() { char input[] = "/home/user/hello.c"; char* output = std::strrchr(input, '/'); if (output) std::cout << output + 1 << '\n'; }
Output:
hello.c
[edit] See also
| finds the first occurrence of a character (function) | |
| finds the last occurrence of a wide character in a wide string (function) | |
| find the last occurrence of a substring (public member function of std::basic_string<CharT,Traits,Allocator>)
| |
| C documentation for strrchr
| |
