I am just learning C by starting on modifying an example program to do what I want it to do. But immediately get warning messages although the compiled program runs fine. Whenever I declare a variable I get the following warnings.
Measure.c(153): warning: #550-D: variable "Minn_flag" was set but never used Measure.c(62): warning: #550-D: variable "Ret_flags" was set but never used
Ret_Flags is declare as a global at the head of a file, and used in two functions. Minn_flag is declared inside a function and used once. I dont understand because I am declaring and using variables right alongside others already used in the example. Those variables dont get errors, but mine do. I am sure it's basic but what am I doing wrong?
Thanks!
"#IF 0 ..... #ENDIF doesn't work"
Remember that 'C' is case-sensitive
You need to write #if 0 ... #endif
This can also be useful for trying-out alternative approaches:
#if 1 //do it this way #else //do it that way #endif