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fix issue#45: add integer overflow checking #57

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fix issue#45: add integer overflow checking #57

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7 changes: 5 additions & 2 deletions C++/chapImplement.tex
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Expand Up @@ -40,8 +40,11 @@ \subsubsection{代码}

for (; x; x /= 10)
r = r * 10 + x % 10;

return r;
if (abs(r) > (pow(2, 31) - 1)) {
return 0;
} else {
return r;
}
}
};
\end{Code}
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2 changes: 1 addition & 1 deletion C++/chapTrick.tex
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Expand Up @@ -12,7 +12,7 @@ \subsubsection{vector和string优先于动态分配的数组}

首先，在性能上，由于\fn{vector}能够保证连续内存，因此一旦分配了后，它的性能跟原始数组相当；

其次，如果用new，意味着你要确保后面进行了delete，一旦忘记了，就会出现BUG，且这样需要都写一行delete，代码不够短；
其次，如果用new，意味着你要确保后面进行了delete，一旦忘记了，就会出现BUG，且这样需要多写一行delete，代码不够短；

再次，声明多维数组的话，只能一个一个new，例如：
\begin{Code}
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