陆星材的博客

#include <stdio.h>#include <assert.h>//自己编程实现库函数strlen（字符串长度）int my_strlen(char *a){ assert(a); int b = 0; while(*a != '\0') { a++; b++; } return b;}int main(){ char str1 = {"abcd"}; pr...

#include <stdio.h>#include <assert.h>#include <string.h>char *my_strcat(char *a, const char *b){ assert(a && b); char *c = a; while(*c != '\0') { c++; } while((*c++ = *b++) != '\0') { .

#include <stdio.h>#include <assert.h>#include <string.h>//库函数strcpy时char *my_strcpy(char *a, const char *b){ assert(a && b); int i = 0; for(i = 0; i < strlen(b); i++) { a[i] = b[i]; } retur.

#include <stdio.h>#include <assert.h>#include <string.h>//自己编程实现库函数strcmp（字符串比较）int my_strcmp (const char *a, const char *b){ assert(a && b); while((*a == *b) && *a) //*a != '\0' { a++; .

#include <stdio.h>#include <assert.h>#include <string.h>//自己编程实现库函数strcasecmp（字符串比较,忽略大小写）char hu(char *A, char *B){ while(*A != '\0') { if(*A <= 'z' && *A >= 'A') { *A += 32; .

#include <stdio.h>#include <assert.h>#include <string.h>char *my_strstr(char *a, char *b){ assert(a && b); while(*a) { if(0 == strncmp(a, b, strlen(b))) { return a; } a+.

#include <stdio.h>int compare(char str, const char *delim){ while(*delim != '\0') { if(str == *delim) { return 1; } delim++; }}char *mystrtok(char *str, const char *delim){ static char *p = NULL; if(str == NULL) { str = p; .

#include <stdio.h>//#include <stdlib.h>void *my_memset(void *a, int b, size_t n){ char *t = (char*)a; while(n--) { t[n] = (char)b; } return a;}int main (){ char str1 = {"hello"}; printf("my memset %s\n.

#include <stdio.h>//#include <stdlib.h>void *my_memcpy(void *a, const void *b, size_t n){ while(n--) { *((char*)a + n) = *((char*)b + n); } return a;}int main (){ char str1 = {"hello"}; char str2 = {"abcd".