PicC 9.50 dsPIC Manual.pdf

Library FunctionsSTRSPNSynopsis#include size_t strspn (const char * s1, const char * s2)DescriptionThe strspn() function returns the length of the initial segment of the string pointed to by s1 whichconsists entirely of characters from the string pointed to by s2.ExampleSee Alsostrcspn()#include #include voidmain (void){printf("%d\n", strspn("This is a string", "This"));printf("%d\n", strspn("This is a string", "this"));}Return ValueThe length of the segment.215