strlen definition

Since it is the first article after the opening, Let's first look at a simple and practical function to enhance your confidence and then step by step to the complexity, it's easy to let it go. I still remember that when I was a beginner in C, I had

sizeof Initial allocated space size, mid-termsizeof (unsigned char) = 1;sizeof (signed char) = 1; sizeof (int) = 4;sizeof (unsigned int) = 4;sizeof (short int) = 2;sizeof (unsigned short) = 2;sizeof (long int) = 4;sizeof (unsi gned long) = 4;sizeof (

Difference between sizeof and strlen in C language, sizeofstrlen in C LanguageDifferences between sizeof and strlen in C LanguageI. Essential differences Sizeof is essentially different from strlen. Sizeof is a single-object operator in C language,

The difference between sizeof and strlen in C languageI. Essential differencessizeof and strlen have an essential difference. sizeof is the C language of a single-eye operator, such as + + 、--, and so on, is not a function, sizeof priority is 2, the

Reposted from carekee blog http://www.cnblogs.com/carekee/articles/1630789.htmlsizeofand strlen的 I. sizeofSizeof (...) is an operator. In the header file, typedef is an unsigned int. Its value is calculated after compilation. The parameter can be an

We know that to judge the string length in php, we only need to use the strlen () and mb_strlen () functions, but it is not as simple as we think, especially when it comes to a mix of Chinese and English, the above functions are a little inadequate.

We often use the strlen () function in PHP to understand the length of a string. The usage is as follows:PHP strlen () function definition and usageThe strlen () function returns the length of the string.SyntaxStrlen (string)Parameter:

  in PHP, strlen and Mb_strlen are functions that ask for string lengths, but for some beginners, it may not be clear what the difference is if you don't read the manual. In PHP there are two functions that compute the number of strings one is

First, the definition: sizeof is an operator (operator) in C/s + +, which simply functions by returning an object or a type's memory byte count. Its return value type is size_t and is defined in the header file stddef.h. In a 32-bit system: The

Many programmers like to use strlen () Mb_strlen () These functions when judging the length of a string, although they have always been a professional test string length, but they do not know Strlen () Mb_strlen () These functions are not optimal.