C Data Type Sizes#
MSOFT 32 | MSOFT 64 | MSOFT 64 Cygwin | Linux 32 | Linux 64 | Max OS/X<br>Intel/M1 | |
---|---|---|---|---|---|---|
char | 1 | 1 | 1 | 1 | 1 | 1 |
short | 2 | 2 | 2 | 2 | 2 | 2 |
int | 4 | 4 | 4 | 4 | 4 | 4 |
long | 4 | 4 | 8 | 4 | 8 | 8 |
long long | 8 | 8 | 8 | 8 | 8 | 8 |
float | 4 | 4 | 4 | 4 | 4 | 4 |
double | 8 | 8 | 8 | 8 | 8 | 8 |
char* | 4 | 8 | 8 | 4 | 8 | 8 |
Program Used#
#include <stdio.h> #define PS(x) printf("sizeof(" #x ") = %d\n", (int)sizeof(x)) int main() { PS(char); PS(short); PS(int); PS(long); PS(long long); PS(float); PS(double); PS(char *); return 0; }
int to pointer code#
/* an int that is the same size as a pointer */ #include <stdint.h> intptr_t myInt; void *ptr = (void *) 123; myInt = (intptr_t) ptr;
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This page (revision-6) was last changed on 05-Nov-2023 16:26 by BlakeMcBride
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