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Jidong Xiao
2023-08-29 12:47:44 -04:00
parent cdb5dcf7dc
commit 3f0db51780
1 changed files with 5 additions and 5 deletions
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lectures/01_introduction/README.md
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@@ -267,7 +267,7 @@ object. There are several ways of constructing string objects:
– By default to create an empty string: std::string my_string_var; – By default to create an empty string: std::string my_string_var;
– With a specified number of instances of a single char: std::string my_string_var2(10, ' '); – With a specified number of instances of a single char: std::string my_string_var2(10, ' ');
– From another string: std::string my_string_var3(my_string_var2); – From another string: std::string my_string_var3(my_string_var2);
- The notation my_string_var.size() is a call to a function size that is defined as a member function of the string class. There is an equivalent member function called length. - The notation my_string_var.size() is a call to a function *size* that is defined as a member function of the string class. There is an equivalent member function called *length*.
- Input to string objects through streams (e.g. reading from the keyboard or a file) includes the following steps: - Input to string objects through streams (e.g. reading from the keyboard or a file) includes the following steps:
1. The computer inputs and discards white-space characters, one at a time, until a non-white-space character is found. 1. The computer inputs and discards white-space characters, one at a time, until a non-white-space character is found.
2. A sequence of non-white-space characters is input and stored in the string. This overwrites anything that was already in the string. 2. A sequence of non-white-space characters is input and stored in the string. This overwrites anything that was already in the string.
@@ -281,7 +281,7 @@ object. There are several ways of constructing string objects:
(and length()). (and length()).
– The :: notation means that size type is defined within the scope of the string type. – The :: notation means that size type is defined within the scope of the string type.
– string::size_type is generally equivalent to unsigned int. – string::size_type is generally equivalent to unsigned int.
– You may see have compiler warnings and potential compatibility problems if you compare an int variable to a.size(). – You may see compiler warnings and potential compatibility problems if you compare an int variable to a.size().
## 1.16 C++ vs. Java ## 1.16 C++ vs. Java