New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

在vs2010 debug模式下报错 #4

Closed

tp-nan opened this issue Sep 20, 2017 · 0 comments

tp-nan commented Sep 20, 2017

RSA/RSA/BigInt.h

Line 175 in 61a3eb7

a=a>>(BigInt::basebitnum);

1右移32位在vs2010 debug模式下还是1. 32位整型右移32位是未定义行为，会引起bug
C99中，对右移有这样的规定：

If the value of the right operand is negative or is

greater than or equal to the width of the promoted left operand, the behavior is undefined.

tp-nan closed this as completed

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment