#strcpy

[mothfishing]

honestly C being the first programming language i learned was...a steep learning curve back when i did it but it had the benefit of making anything i try to teach myself afterwards seem ridiculously simple in comparison

c++? easy peasy. java? easy peasy. python? easy peasy. are you trying to say i DON’T need to do this ridiculous set of things just to make strings work? really? im already crying in relief

[nglartswitch]

[nglartswitch]

[nglartswitch]

[trace1926-blog]

C / strcpy / pointer and array

char str[5],*st="hello";

while(*st) {

putchar(*st++);

printf(" in  %d\n",st);

}

printf("%c in  %d\n",*st,st);

=====================================

g99470709@webmail ~/os/final/new $ ./str

h in  134513981

e in  134513982

l in  134513983

l in  134513984

o in  134513985

 in  134513985

=====================================

array 就是  *var array[0] 就是*vararray[1] 就是*var++*var放的是dereference的東西var才是放address，所以為什麼是*var++不是var++，我也不知道

------------------ char str[5],*st="hello"; printf("%c in  %d\n",*st,st); strcpy(str,st); printf("%c in  %d\n",*str,str);

.........................................

g99470709@webmail ~/os/final/new $ ./str

h in  134513884

h in  -1076376741 strcpy把string完全復製了，但是指標仍指不同位所以是deep copy不是影子copy