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#ifndef STRING_H
#define STRING_H
#include <stddef.h>
#include <stdlib.h>
#if !defined(__ROMCC__)
#include <console/vtxprintf.h>
#endif
/* Stringify a token */
#ifndef STRINGIFY
#define _STRINGIFY(x) #x
#define STRINGIFY(x) _STRINGIFY(x)
#endif
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(__ROMCC__)
int snprintf(char *buf, size_t size, const char *fmt, ...);
int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
#endif
char *strdup(const char *s);
char *strconcat(const char *s1, const char *s2);
// 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;
}
/**
* Find a character in a string.
*
* @param s The string.
* @param c The character.
* @return A pointer to the last occurrence of the character in the
* string, or NULL if the character was not encountered within the string.
*/
static inline char *strrchr(const char *s, int c)
{
char *p = (char *)s + strlen(s);
for (; p >= s; p--) {
if (*p == c)
return p;
}
return NULL;
}
static inline char *strncpy(char *to, const char *from, int count)
{
register char *ret = to;
register char data;
while (count > 0) {
count--;
data = *from++;
*to++ = data;
if (data == '\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]) || (s1[i] == '\0'))
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 isprint(int c)
{
return c >= ' ' && c <= '~';
}
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;
}
/*
* Parses an unsigned integer and moves the input pointer forward to the first
* character that's not a valid digit. s and *s must not be NULL. Result
* undefined if it overruns the return type size.
*/
static inline unsigned int skip_atoi(char **s)
{
unsigned int i = 0;
while (isdigit(**s))
i = i*10 + *((*s)++) - '0';
return i;
}
#endif /* STRING_H */
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