比较 C++ 中的字符数组和字符串文字 [英] Comparing character arrays and string literals in C++

问题描述

我有一个字符数组，我想弄清楚它是否与字符串文字匹配，例如:

I have a character array and I'm trying to figure out if it matches a string literal, for example:

char value[] = "yes";
if(value == "yes") {
   // code block
} else {
   // code block
}

这导致了以下错误:与字符串文字比较导致未指定的行为.我也尝试过类似的东西:

This resulted in the following error: comparison with string literal results in unspecified behavior. I also tried something like:

char value[] = "yes";
if(strcmp(value, "yes")) {
   // code block
} else {
   // code block
}

这没有产生任何编译器错误，但它的行为不符合预期.

This didn't yield any compiler errors but it is not behaving as expected.

推荐答案

std::strcmp 如果字符串相等则返回 0.

std::strcmp returns 0 if strings are equal.

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