#ifndef STRING_H #define STRING_H #include <stddef.h> #include <stdlib.h> void *memcpy(void *dest, const void *src, size_t n); void *memmove(void *dest, const void *src, size_t n); void *memset(void *s, int c, size_t n); int memcmp(const void *s1, const void *s2, size_t n); void *memchr(const void *s, int c, size_t n); #if !defined(__PRE_RAM__) int sprintf(char * buf, const char *fmt, ...); #endif // simple string functions static inline size_t strnlen(const char *src, size_t max) { size_t i = 0; while((*src++) && (i < max)) { i++; } return i; } static inline size_t strlen(const char *src) { size_t i = 0; while(*src++) { i++; } return i; } static inline char *strchr(const char *s, int c) { for (; *s; s++) { if (*s == c) return (char *) s; } return 0; } #if !defined(__PRE_RAM__) static inline char *strdup(const char *s) { size_t sz = strlen(s) + 1; char *d = malloc(sz); memcpy(d, s, sz); return d; } #endif static inline char *strncpy(char *to, const char *from, int count) { register char *ret = to; while (count > 0) { count--; if ((*to++ = *from++) == '\0') break; } while (count > 0) { count--; *to++ = '\0'; } return ret; } static inline char *strcpy(char *dst, const char *src) { char *ptr = dst; while (*src) *dst++ = *src++; *dst = '\0'; return ptr; } static inline int strcmp(const char *s1, const char *s2) { int r; while ((r = (*s1 - *s2)) == 0 && *s1) { s1++; s2++; } return r; } static inline int strncmp(const char *s1, const char *s2, int maxlen) { int i; for (i = 0; i < maxlen; i++) { if (s1[i] != s2[i]) return s1[i] - s2[i]; } return 0; } static inline int isspace(int c) { switch (c) { case ' ': case '\f': case '\n': case '\r': case '\t': case '\v': return 1; default: return 0; } } static inline int isdigit(int c) { return (c >= '0' && c <= '9'); } static inline int isxdigit(int c) { return ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')); } static inline int isupper(int c) { return (c >= 'A' && c <= 'Z'); } static inline int islower(int c) { return (c >= 'a' && c <= 'z'); } static inline int toupper(int c) { if (islower(c)) c -= 'a'-'A'; return c; } static inline int tolower(int c) { if (isupper(c)) c -= 'A'-'a'; return c; } #endif /* STRING_H */