This question already has answers here: Closed 12 years ago. 开发者_Python百科 Possible Duplicate: C programming: is this undefined behavior?
I am using Coverity Prevent on a project to find errors. It reports an error for this expression (The variable names are of course change开发者_Python百科d):
#include<stdio.h> int main() { int i=7,j; j=(i++,++i,j*i); return 0; 开发者_StackOverflow中文版}
int main() { int i=3; (++i)++; printf(\"%d\",开发者_运维技巧i); } This programs works with g++ compiler but not gcc.
after reading about sequence points, I learned that i = ++i is undefined. So how about this code: int i;
Once again, our best loved \"i=i--\" -like issues. In C99 we have: 6.5 Expressions #2: Between the previous and next sequence point an
Hiii all I made this program today int main() { int a = 1,2; /* Shows开发者_运维百科 error */ int b = (1,2); /* No error */
I\'m stuck with a weird VS2008 C++ issue, that lo开发者_开发问答oks like operator precedence is not respected.
The Python docs say that * and / have the same precedence. I know that expressions in python are evaluated from left to right.
After writing my response on the question how to assign to multiple variables in a ternary operator I actually tried out the code I wrote:
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