Imagecraft c compiler and development environment for the atmel avr

ICCV8 for AVR – C Compiler for Atmel AVRsplits s1 into tokens. Each token is separated by any of the characters in delim.You specify the source string s1 in the first call to strtok. Subsequent calls tostrtok with s1 set to NULL will return the next token until no more token isfound, and strtok returns NULL.strtok modifies the content of s1 and pointers into s1 are returned as returnvalues.__flash char * support functionsThese functions perform the same processing as their counterparts without the 'c'prefix except that they operate on constant strings in FLASH. void *cmemchr(__flash void *s, int c, size_t n); int cmemcmp(__flash char *s1, char *s2, size_t n); void *cmemcpy(void *dst, __flash void *src, size_t n); char *cstrcat(char *s1, __flash char *s2); int cstrcmp(__flash char *s1, char *s2); size_t cstrcspn(char *s1, __flash char *cs); size_t cstrlen(__flash char *s); char *cstrncat(char *s1, __flash char *s2, size_t n); int cstrncmp(__flash char *s1, char *s2, int n); char *cstrcpy(char *dst, __flash char *src); char *cstrpbrk(char *s1, __flash char *cs); size_t cstrspn(char *s1, __flash char *cs); char *cstrstr(char *s1, __flash char *s2);Finally, the following functions are exactly like the corresponding ones without the xsuffix except that they use elpm instead of the lpm instruction. These are useful forbootloader applications or if you want to put your constant data above the lowest 64Kbytes of Flash:cmemcpyx, cmemchrx, cmemcmpx, cstrcatx, cstrncatx, cstrcmpx,cstrncmpx, cstrcpyx, cstrncpyx, cstrcspnx, cstrlenx, cstrspnx,cstrstrx, cstrpbrkx104