gcov line count is different from no of lines in source code

output of gcov says no of lines executed 70 % of 10

but my code has more than 10 lines..

it does not count braces , else statement

开发者_开发知识库please help ..

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gcov only counts lines of code that actually make it into the binary - braces are just part of the syntax.

Presumably the else is being optimized/compiled out?