That must be a typographical error.
Because '+' does nothing to the return value of the function.
Also because there is no lvalue in the expression.
But with '-', there is an effect.
int dummy_func() { return 5; }
int num = -dummy_func();
As a result, num will be '-5'.
Vamsi wrote:
Joel M. Pareja wrote:The placement of '+' or '-' before the function call is performing a unary operator on the return value of the function.does it server any purpose ? , unary '+' operator will not have any significance effect on the return value-VamsiVamsi wrote:Hi List, i have seen a code snippet which starts with + symbol, +system("ls -l"); what is the significance of using + symbol before system.i also tried using + before printf ,, like +printf("Some text"); and it is compiling and working tooo,,Can somebody clarify wht does that + signify?? Thank You. -Vamsi -: send the line "unsubscribe linux-c-programming" inthe body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html-: send the line "unsubscribe linux-c-programming" inthe body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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