| #include "runtime.h" |
| void *memcpy(void *destination,const void *source,size_t size) { |
| volatile unsigned char *d=destination;const volatile unsigned char *s=source; |
| for(size_t i=0;i<size;i++)d[i]=s[i];return destination; |
| } |
| void *memset(void *destination,int value,size_t size) { |
| volatile unsigned char *d=destination;for(size_t i=0;i<size;i++)d[i]=(unsigned char)value; |
| return destination; |
| } |
| void *memchr(const void *source,int value,size_t size) { |
| const unsigned char *s=source;for(size_t i=0;i<size;i++)if(s[i]==(unsigned char)value)return (void *)(s+i); |
| return NULL; |
| } |
| int memcmp(const void *left,const void *right,size_t size) { |
| const unsigned char *a=left,*b=right; |
| for(size_t i=0;i<size;i++)if(a[i]!=b[i])return (int)a[i]-(int)b[i];return 0; |
| } |
| int strcmp(const char *left,const char *right) { |
| const unsigned char *a=(const unsigned char *)left,*b=(const unsigned char *)right; |
| while(*a && *a==*b){a++;b++;}return (int)*a-(int)*b; |
| } |
| size_t strlen(const char *s) {size_t n=0;while(s[n])n++;return n;} |
|
|
