c++ static global variable in header

Select the data you need, for example in the address, parameters, headers, or body. Example #1. Email. Using extern is only of relevance when the program you're building consists of multiple source files linked together, where some of the variables defined, for example, in source file file1.c need to be referenced in other source files, such as file2.c.. Best way to declare and define global variables. The linker will find it". The header file contains only declarations, and is included by the .c file for the module. If global variable is to be used across multiple .c files, you should not declare it static. Static Variable in C - Computer Notes A static variable can preserve its value, and you can not initialize a static variable again. C Header declaration global variable in c++ for multiple forms project (not ... A global variable can be accessed by any function. Ich habe mal gelernt, dass man nur dann extern nimmt, wenn man ohne Header arbeitet und in einem C file die Variable global definiert und in einem anderen C file zu Beginn diese Variable extern deklariert. the file itself and any file that includes it). If the implementation doesn't contain it or contains multiple definitions of it, it … can we access global variables in C

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