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127 lines
4.4 KiB
C
127 lines
4.4 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#define __STDC_LIMIT_MACROS 1
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#include <inttypes.h>
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int
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main(int argc, char** argv)
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{
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int8_t C, c1;
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uint8_t uc1;
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short S, s1;
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unsigned short us1;
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int i1;
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unsigned ui1;
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int64_t L, l1;
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uint64_t ul1;
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float F;
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double D;
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/* input values */
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C = (char) (argc >= 2)? atoi(argv[1]) : 0x64; /* 100 = 'd' */
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S = (short) (argc >= 3)? atoi(argv[2]) : -769; /* 0xfcff = -769 */
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L = (long) (argc >= 4)? atoi(argv[3]) : 0xa3a3a3a3a3a3; /*179923220407203*/
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/* Test integer to integer conversions */
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uc1 = (uint8_t) C; /* 100 = 'd' */
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us1 = (unsigned short) C; /* 100 = 'd' */
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ui1 = (unsigned int) C; /* 100 = 'd' */
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ul1 = (unsigned long) C; /* 100 = 'd' */
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s1 = (short) C; /* 100 = 'd' */
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i1 = (int) C; /* 100 = 'd' */
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l1 = (long) C; /* 100 = 'd' */
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printf("\nCHAR C = '%c' (%d)\t\t(0x%x)\n", C, C, C);
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printf("char to short s1 = %d\t\t(0x%x)\n", s1, s1);
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printf("char to int i1 = %d\t\t(0x%x)\n", i1, i1);
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printf("char to long l1 = %ld\t\t(0x%lx)\n", l1, l1);
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printf("\nchar to ubyte uc1 = %u\t\t(0x%x)\n", uc1, uc1);
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printf("char to ushort us1 = %u\t\t(0x%x)\n", us1, us1);
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printf("char to uint ui1 = %u\t\t(0x%x)\n", ui1, ui1);
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printf("char to ulong ul1 = %lu\t\t(0x%lx)\n", ul1, ul1);
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uc1 = (uint8_t) S; /* 0xff = 255 */
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us1 = (unsigned short) S; /* 0xfcff = 64767 */
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ui1 = (unsigned int) S; /* 0xfffffcff = 4294966527 */
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ul1 = (unsigned long) S; /* */
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c1 = (int8_t) S; /* 0xff = -1 */
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i1 = (int) S; /* 0xfffffcff = -769 */
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l1 = (long) S; /* */
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printf("\n\nSHORT S = %d\t\t(0x%x)\n", S, S);
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printf("short to byte c1 = %d\t\t(0x%x)\n", c1, c1);
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printf("short to int i1 = %d\t\t(0x%x)\n", i1, i1);
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printf("short to long l1 = %ld\t\t(0x%lx)\n", l1, l1);
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printf("\nshort to ubyte uc1 = %u\t\t(0x%x)\n", uc1, uc1);
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printf("short to ushort us1 = %u\t\t(0x%x)\n", us1, us1);
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printf("short to uint ui1 = %u\t\t(0x%x)\n", ui1, ui1);
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printf("short to ulong ul1 = %lu\t\t(0x%lx)\n", ul1, ul1);
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uc1 = (unsigned char) L; /* */
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c1 = (int8_t) L; /* */
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s1 = (short) L; /* */
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us1 = (unsigned short) L; /* */
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i1 = (int) L; /* */
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ui1 = (unsigned int) L; /* */
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ul1 = (unsigned long) L; /* */
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printf("\n\nLONG L = %ld\t\t(0x%lx)\n", L, L);
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printf("long to byte c1 = %d\t\t(0x%x)\n", c1, c1);
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printf("long to short s1 = %d\t\t(0x%x)\n", s1, s1);
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printf("long to int i1 = %d\t\t(0x%x)\n", i1, i1);
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printf("\nlong to ubyte uc1 = %u\t\t(0x%x)\n", uc1, uc1);
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printf("long to ushort us1 = %u\t\t(0x%x)\n", us1, us1);
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printf("long to uint ui1 = %u\t\t(0x%x)\n", ui1, ui1);
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printf("long to ulong ul1 = %lu\t\t(0x%lx)\n", ul1, ul1);
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/* Test floating-point to integer conversions */
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F = (float) (argc >= 4)? atof(argv[3]) : 1.0;
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D = (argc >= 5)? atof(argv[4]) : 2.0;
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us1 = (unsigned short) F;
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ui1 = (unsigned int) F;
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ul1 = (unsigned long) F;
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s1 = (short) F;
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i1 = (int) F;
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l1 = (long) F;
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printf("\n\nFLOAT F = %f\n", F);
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printf("float to short s1 = %d\t\t(0x%x)\n", s1, s1);
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printf("float to int i1 = %d\t\t(0x%x)\n", i1, i1);
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printf("float to ushort us1 = %u\t\t(0x%x)\n", us1, us1);
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printf("float to uint ui1 = %u\t\t(0x%x)\n", ui1, ui1);
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printf("float to ulong ul1 = %lu\t\t(0x%lx)\n", ul1, ul1);
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us1 = (unsigned short) D;
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ui1 = (unsigned int) D;
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ul1 = (unsigned long) D;
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s1 = (short) D;
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i1 = (int) D;
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l1 = (long) D;
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printf("\n\nDOUBLE D = %f\n", D);
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printf("double to short s1 = %d\t\t(0x%x)\n", s1, s1);
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printf("double to int i1 = %d\t\t(0x%x)\n", i1, i1);
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printf("double to long l1 = %ld\t\t(0x%lx)\n", l1, l1);
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printf("double to ushort us1 = %u\t\t(0x%x)\n", us1, us1);
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printf("double to uint ui1 = %u\t\t(0x%x)\n", ui1, ui1);
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printf("double to ulong ul1 = %lu\t\t(0x%lx)\n", ul1, ul1);
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return 0;
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}
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