strpbrk
From cppreference.com
| Defined in header <string.h>
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| char* strpbrk( const char* dest, const char* breakset ); |
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Scans the null-terminated byte string pointed to by dest for any character from the null-terminated byte string pointed to by breakset, and returns a pointer to that character.
The behavior is undefined if either dest or breakset is not a pointer to a null-terminated byte string.
Contents |
[edit] Parameters
| dest | - | pointer to the null-terminated byte string to be analyzed |
| breakset | - | pointer to the null-terminated byte string that contains the characters to search for |
[edit] Return value
Pointer to the first character in dest, that is also in breakset, or null pointer if no such character exists.
[edit] Notes
The name stands for "string pointer break", because it returns a pointer to the first of the separator ("break") characters.
[edit] Example
Run this code
#include <stdio.h> #include <string.h> int main(void) { const char* str = "hello world, friend of mine!"; const char* sep = " ,!"; unsigned int cnt = 0; do { str = strpbrk(str, sep); // find separator if(str) str += strspn(str, sep); // skip separator ++cnt; // increment word count } while(str && *str); printf("There are %d words\n", cnt); }
Output:
There are 5 words
[edit] References
- C11 standard (ISO/IEC 9899:2011):
- 7.24.5.4 The strpbrk function (p: 368)
- C99 standard (ISO/IEC 9899:1999):
- 7.21.5.4 The strpbrk function (p: 331)
- C89/C90 standard (ISO/IEC 9899:1990):
- 4.11.5.4 The strpbrk function
[edit] See also
| returns the length of the maximum initial segment that consists of only the characters not found in another byte string (function) | |
| finds the first occurrence of a character (function) | |
| (C11) |
finds the next token in a byte string (function) |
| C++ documentation for strpbrk
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