?? switch.c
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/* Test the types of switch statement. type: char, int, long sign: signed, unsigned storage: static, attr: volatile */#include <testfwk.h>{sign} {type}sparseSwitch({sign} {type} val){ {sign} {type} ret; {storage} {attr} {sign} {type} local; local = val; switch (local) { case 1: ret = 7; break; case 4: ret = 12; break; case 6: ret = 13; /* Fall through */ case 12: ret = 14; break; case 13: case 14: case 15: ret = 19; break; default: ret = 30; } return ret;}voidtestSparseSwitch(void){ ASSERT(sparseSwitch(1) == 7); ASSERT(sparseSwitch(4) == 12); ASSERT(sparseSwitch(6) == 14); ASSERT(sparseSwitch(12) == 14); ASSERT(sparseSwitch(13) == 19); ASSERT(sparseSwitch(14) == 19); ASSERT(sparseSwitch(15) == 19); ASSERT(sparseSwitch(19) == 30); ASSERT(sparseSwitch(0) == 30);}{sign} {type}denseSwitch({sign} {type} val){ {sign} {type} ret; {storage} {attr} {sign} {type} local; local = val; ret = 12; switch (local) { case 0: ret = 1; break; case 1: ret = 14; break; case 2: ret = 15; break; case 3: ret = 34; break; case 4: ret = 17; break; /* No default */ } return ret;}voidtestDenseSwitch(void){ ASSERT(denseSwitch(0) == 1); ASSERT(denseSwitch(1) == 14); ASSERT(denseSwitch(2) == 15); ASSERT(denseSwitch(3) == 34); ASSERT(denseSwitch(4) == 17); ASSERT(denseSwitch(5) == 12); ASSERT(denseSwitch(100) == 12);}voidtestDenseIntSwitch(void){ volatile int val = 1000; volatile int ret = 0; switch (val) { case 999: ret = 5; break; case 1000: ret = 6; break; case 1001: ret = 7; break; case 1002: ret = 12; break; case 1003: ret = 14; break; } ASSERT(ret == 6); val = 129; switch (val) { case 126: ret = 5; break; case 127: ret = 6; break; case 128: ret = 7; break; case 129: ret = 8; break; default: ret = 9; } ASSERT(ret == 8);}?? 快捷鍵說明
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