strcspn
- Updated2023-02-21
- 1 minute(s) read
strcspn
size_t strcspn (const char stringToSearch[], const char characterSet[]);
Purpose
Returns the position (or index) of the first occurrence in a string, of a character that belongs to a specified set of characters.
Parameters
| Input | ||
| Name | Type | Description |
| stringToSearch | const char [] | Contains a pointer to the string that is searched for the characters in characterSet. |
| characterSet | const char [] | Contains a pointer to the character set containing the characters that are searched for in the specified string. |
Return Value
| Name | Type | Description |
| matchedCharIndex | size_t | Contains the index value of the string corresponding to the first matched character from the character set. If no matching characters are found, the index of the terminating ASCII NUL byte is returned. This value also corresponds to the length of the initial segment of the string containing no character from the character set. |
Additional Information
Library: ANSI C Library
Include file: ansi_c.h
LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later