ϙΠϯλܕม ϙΠϯλܕมʹ֨ೲ͞Ε͍ͯΔΞυϨεͷதΛಡΉ ▸ ϙΠϯλܕมʹ֨ೲ͞Ε͍ͯΔΞυϨεͷதΛಡΉʹ*Λ͏ #include int main(void) { int i = 0; int *p = &i; printf("%d\n", *p); return 0; } 0 : int &i : int * ͔͜͜Β্ʹ4bytes -> i p
ػցޠ͔ΒϙΠϯλΛ͘ αϯϓϧίʔυ ▸ ͜ͷίʔυͰ࣮ݧͯ͠ΈΑ͏ #include int succ(int x) { int ans = x + 1; return ans; } int main(void) { int x = 5; int y = succ(x); printf("%d\n", y); return 0; }
ϙΠϯλܕྻ VS ྻͷϙΠϯλ ϙΠϯλܕྻ ▸ ϙΠϯλܕΛฒͨྻΛ࡞Γ͍ͨͱ͖ҎԼͷΑ͏ʹએݴ͢ΕOK ▸ int *x[5] ▸ ʮΘΕํʯͰએݴ͢ΔݪଇΛࢥ͍ग़͢ ▸ *x[1]Ͱxͷ1൪ͷΞυϨεͷ த͕ಡΊΔ #include int main(void) { int a = 0; int b = 1; int *x[2] = {&a, &b}; printf("%d, %d\n", *x[0], *x[1]); return 0; }