about a lot of history. At one point back in time, it was common practice (and even necessary) to cast C function call return values to (void) to indicate that we're not using them:
(void)printf("hello world\n");
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about a lot of history. At one point back in time, it was common practice (and even necessary) to cast C function call return values to (void) to indicate that we're not using them:
(void)printf("hello world\n");
转载于:https://my.oschina.net/invictuslee/blog/220747