/*** *char *strcat(dst, src) - concatenate (append) one string to another * *Purpose: * Concatenates src onto the end of dest. Assumes enough * space in dest. * *Entry: * char *dst - string to which ＂src＂ is to be appended * const char *src - string to be appended to the end of ＂dst＂ * *Exit: * The address of ＂dst＂ * *Exceptions: * *******************************************************************************/ char * __cdecl strcat ( char * dst, const char * src ) { char * cp = dst; while( *cp ) cp++; /* find end of dst */ while( *cp++ = *src++ ) ; /* Copy src to end of dst */ return( dst ); /* return dst */ } /*** *char *strcpy(dst, src) - copy one string over another * *Purpose: * Copies the string src into the spot specified by * dest; assumes enough room. * *Entry: * char * dst - string over which ＂src＂ is to be copied * const char * src - string to be copied over ＂dst＂ * *Exit: * The address of ＂dst＂ * *Exceptions: *******************************************************************************/ char * __cdecl strcpy(char * dst, const char * src) { char * cp = dst; while( *cp++ = *src++ ) ; /* Copy src over dst */ return( dst )； } //以上是微软的实现，更多的到VC++安装盘下CRT目录找吧