#ifndef STRINGS_H #define STRINGS_H #include void itoa(int n, char str[]); void strrev(char s[]); int strlen(char s[]); char* strcpy(char* strDest, const char* strSrc); char* strcnc(char* str1, char* str2); char* u8_hex(const uint8_t x); char* u16_hex(const uint16_t x); char* u32_hex(const uint32_t x); char* u64_hex(const uint64_t x); #endif