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改进字符串长度计算

This commit is contained in:
大石头 2017-08-22 00:43:53 +08:00
parent 47d272b89e
commit 27e875bf09
1 changed files with 8 additions and 3 deletions
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11
Core/String.cpp
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@ -140,10 +140,15 @@ String::String(char* str, int length) : Array(str, length)
_Capacity = length - 1; _Capacity = length - 1;
// 计算外部字符串长度 // 计算外部字符串长度
int len = strlen(str); //int len = strlen(str);
if (len >= length) len = length - 1; //if (len >= length) len = length - 1;
auto p = str;
int len = 0;
while (*p++ != '\0' && len < _Capacity) len++;
_Length = len; _Length = len;
_Arr[_Length] = '\0'; _Arr[len] = '\0';
} }
// 外部传入缓冲区供内部使用，内部计算字符串长度，注意长度减去零结束符 // 外部传入缓冲区供内部使用，内部计算字符串长度，注意长度减去零结束符