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g++ warning for unsafe operation
From: |
mathieu |
Subject: |
g++ warning for unsafe operation |
Date: |
13 Dec 2006 14:03:30 -0800 |
User-agent: |
G2/1.0 |
Hi there,
I am looking for a warning in gcc that would warn me about
potentially dangerous operation, such as the one describe in (*). I
understand this is perfectly valid operation, but it looks to me like a
valid warning.
I tried the following so far:
-Wall -Wextra -Wconversion -Wsign-compare
Thanks
-Mathieu
(*)
#include <vector>
int main()
{
std::vector<int> v;
int s = 0;
for(unsigned int i = 0; i < v.size() - 1; ++i) // v.size() == 0
{
s += v[i] * v[i+1];
}
return 0;
}
- g++ warning for unsafe operation,
mathieu <=