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分享关于tolower()问题的求证
各位达人,请问在用tolower()转换一串字符串时如果字符串中本来就含有部分小写字母那么该函数在遇到这些小写字母时是不是不做任何转换自己返回该小写字母值?请问我的理解是否正确?谢谢!!
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shiyang1212 2008-03-27
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谢谢各位
babyvox1999 2008-03-27
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int tolower(int c);
tolower() converts the letter c to lower case, if possible.
If c is not an unsigned char value, or EOF, the behaviour of these functions is undefined.
RETURN VALUE
The value returned is that of the converted letter, or c if the conversion was not possible.
tolower() converts the letter c to lower case, if possible.
If c is not an unsigned char value, or EOF, the behaviour of these functions is undefined.
RETURN VALUE
The value returned is that of the converted letter, or c if the conversion was not possible.
51365133 2008-03-27
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yes
ryfdizuo 2008-03-27
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right
