WHAT IS "ret_code_t" ??????

Question

HI... I'm in the middle of understanding code line by line...I've taken classes of C/C++ for an year, but BLE programming by myself is so difficult ㅠㅠ
I have a very simple question that I can't find out!!!!

WHAT IS " ret_code_t"????
I can find it in many of the codes.. but can't find out what that actaully is.
I'm worried if it's a really easy question like "what is int" but I had no choice...
Thanks!(Sobs)

awneil · Accepted Answer

What IDE are you using? 
 Any decent IDE will have some way that allows you to select a name - such as ret_code_t - and ' Go To Definition ' 
 eg, in Segger Embedded Studio (SES): 
 
 As the name suggests, this will take you to where that symbol is defined. 
 In this case, it is in sdk_errors.h: 
 /**
 * @brief API Result.
 *
 * @details Indicates success or failure of an API procedure. In case of failure, a comprehensive
 * error code indicating cause or reason for failure is provided.
 *
 * Though called an API result, it could used in Asynchronous notifications callback along
 * with asynchronous callback as event result. This mechanism is employed when an event
 * marks the end of procedure initiated using API. API result, in this case, will only be
 * an indicative of whether the procedure has been requested successfully.
 */
typedef uint32_t ret_code_t; 
 Note that a descriptive comment is provided. 
 In fact, if you just hover your mouse over the symbol, SES - like many other IDEs - will pop up the definition: 
 
 but then you don't get to see the documentation. 
 (some other IDEs do include documentation here) 
 #CodeBrowsing #GoToDefinition

WHAT IS "ret_code_t" ??????

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