Am 04.07.18 um 17:31 schrieb Steven D'Aprano:
On Wed, 04 Jul 2018 13:48:26 +0100, Bart wrote:
Presumably one type hint applies for the whole scope of the variable,
not just the one assignment.
You know how in C you can write
int x = 1; # the type applies for just this one assignment
x = 2.5; # perfectly legal, right?
Not sure what point you are trying to make, but your example compiles in
C, if you replace the '#' comment sign with '//'. Only it doesn't do
what you might think: the 2.5 is down-converted to an integer, therefore
x will be 2 in the end. There will be a compiler warning but no error.
=====================================
Apfelkiste:Tests chris$ cat intx.c
#include <stdio.h>
int main() {
int x=1;
x=2.5;
printf("%d\n", x);
return 0;
}
Apfelkiste:Tests chris$ gcc intx.c -o intx && ./intx
intx.c:4:4: warning: implicit conversion from 'double' to 'int' changes
value
from 2.5 to 2 [-Wliteral-conversion]
x=2.5;
~^~~
1 warning generated.
2
Christian
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