3.158 strspn

Function

Compute the length of a substring.

Header

string.h

Declaration

size_t __fastcall__ strspn (const char* s, const char* set);

Description

The strspn function computes and returns the length of the substring pointed to by s which does consist only of characters contained in the string set.

Limits

• The function is only available as fastcall function, so it may only be used in presence of a prototype.

Availability

ISO 9899

See also

strcspn, strstr

Example

None.