PicC 9.50 dsPIC Manual.pdf

Library FunctionsTOLOWER, TOUPPER, TOASCIISynopsis#include char toupper (int c)char tolower (int c)char toascii (int c)DescriptionThe toupper() function converts its lower case alphabetic argument to upper case, the tolower()routine performs the reverse conversion and the toascii() macro returns a result that is guaranteedin the range 0-0177. The functions toupper() and tolower() return their arguments if it is not analphabetic character.Example#include #include #include voidmain (void){char * array1 = "aBcDE";int i;}for(i=0;i < strlen(array1); ++i) {printf("%c", tolower(array1[i]));}printf("\n");See Alsoislower(), isupper(), isascii(), et. al.222