68 lines
1.5 KiB
C++
68 lines
1.5 KiB
C++
/* testIntrospect.cpp */
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/* Author: Marty Kraimer Date: 2010.09 */
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#include <cstddef>
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#include <cstdlib>
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#include <cstddef>
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#include <string>
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#include <cstdio>
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#include <epicsAssert.h>
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#include "requester.h"
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#include "pvType.h"
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using namespace epics::pvData;
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int main(int argc,char *argv[])
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{
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char *fileName = 0;
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if(argc>1) fileName = argv[1];
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FILE * fd = stdout;
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if(fileName!=0 && fileName[0]!=0) {
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fd = fopen(fileName,"w+");
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}
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assert(sizeof(int8)==1);
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assert(sizeof(int16)==2);
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assert(sizeof(int32)==4);
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assert(sizeof(int64)==8);
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assert(sizeof(uint32)==4);
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assert(sizeof(uint64)==8);
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int intValue;
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int8 byteInt;
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intValue = 0x7f;
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byteInt = intValue;
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fprintf(fd,"int8 max %d",(int)byteInt);
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intValue = 0x80;
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byteInt = intValue;
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fprintf(fd," min %d\n",(int)byteInt);
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int16 shortInt;
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intValue = 0x7fff;
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shortInt = intValue;
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fprintf(fd,"int8 max %hd",shortInt);
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intValue = 0x8000;
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shortInt = intValue;
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fprintf(fd," min %hd\n",shortInt);
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int32 intInt;
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intValue = 0x7fffffff;
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intInt = intValue;
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fprintf(fd,"int8 max %d",intInt);
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intValue = 0x80000000;
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intInt = intValue;
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fprintf(fd," min %d\n",intInt);
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int64 longInt = 0x7fffffff;
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longInt <<= 32;
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longInt |= 0xffffffff;
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fprintf(fd,"int8 max %lld",longInt);
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longInt = intValue = 0x80000000;;
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longInt <<= 32;
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fprintf(fd," min %lld\n",longInt);
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return(0);
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}
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