c string compare ignore case

String comparisons (ignoring case), which we will generally write as str1. ToUpper () = = str2. ToUpper () or str1. ToLower () = = str2. ToLower () This will be relatively inefficient, especially in cycles, which are slow to run as compared to

All comparisons in this document are case sensitive. In C ++: "A" "AA" "AA" "AA" "AC" Obviously, in C ++, string comparison follows the following two rules: 1. Lower case 2. Comparison from the beginning to the back. This deduction is

Memory and String functions 1) bcmp Compare memory contentsCorrelation function bcmp,strcasecmp,strcmp,strcoll,strncmp,strncasecmpTable header file #include Defines the function int bcmp (const void *s1,const void * s2,int N);The function

1.1 String caseMethod prototypesString .  ToUpper (); Returns the uppercase form of a string conversionString .  ToLower (); Returns the lowercase form of a string conversionFor example, when a user enters a user name, it may be confusing in case of

14.1 CharactersIn the. Net framework, characters are always represented as 16-bit Unicode code values, which simplifies the development of internationalized applications.Each character is represented as an instance of the SYSTEM.CHAR structure.For

Today, I saw string and vector, it is more convenient to use C language than before, but there are many rules to remember, C + + learning is a long process AH. A string of the standard library type represents a sequence of variable long characters.

String 1. char_traits character feature class1) significance: Wrap the universal behavior interface of a specific string element so that the container can execute a specific behavior based on the feature information.2) A general type name is defined.

1) Initialization of a string objectBecause string objects are particularly common, Java provides a simplified, special syntax for initializing a string object in the following format:String s = "abc";s = "Java language";In fact, according to the

1) Initialization of a string objectBecause string objects are particularly common, Java provides a simplified, special syntax for initializing a string object in the following format:String s = "abc";s = "Java language";In fact, according to the

Next to the article on string, you have to know something! The last time I said some of the concepts and considerations of string, this article is to sort out some of the usual operations. 1, String condition operation String comparisons are often