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I have defined a C# enum as
public enum ORDER { ... unknown, partial01, partial12, partial23, } and can use its value as a string as in:
string ss = ORDER.partial01.ToString(); However when I try to use it in a case statement it fails to compile:
string value = ... switch (value) { case null: break; case "s": // OK break; case ORDER.partial01.ToString(): // compiler throws "a constant value is expected" break; ... I thought enums were constants. How do I get around this?
(I cannot parse the value into an enum as some of the values are outside the range)
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C provides two basic ways to read and write strings. input/output functions, scanf/fscanf and printf/fprintf. Second, we can use a special set of string-only functions, get string (gets/fgets) and put string ( puts/fputs ).
We can take string input in C using scanf(“%s”, str). But, it accepts string only until it finds the first space. There are 4 methods by which the C program accepts a string with space in the form of user input.
C doesn't have strings as first class values; you need to use strcpy() to assign strings.
Overview. The C language does not have a specific "String" data type, the way some other languages such as C++ and Java do. Instead C stores strings of characters as arrays of chars, terminated by a null byte.
Since C# 6, you can use: case nameof(SomeEnum.SomeValue):
Nameof is evaluated at compile time, simply to a string that matches the (unqualified) name of the given variable, type, or member. Naturally, it changes right along should you ever rename the enum option name.
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