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41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
#include "scan.h"
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#ifdef UNITTEST
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#undef UNITTEST
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#include "scan_longn.c"
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#define UNITTEST
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#endif
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size_t scan_long(const char *src,long *dest) {
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return scan_longn(src,((size_t)-1)/2,dest);
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}
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#ifdef UNITTEST
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#include <assert.h>
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int main() {
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long i;
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assert(scan_long("1234",&i)==4 && i==1234);
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assert(scan_long("-1234",&i)==5 && i==-1234);
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assert(scan_long("+1234",&i)==5 && i==1234);
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assert(scan_long("2147483647",&i)==10 && i==2147483647); // INT_MAX
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assert(scan_long("-2147483648",&i)==11 && i==-2147483648); // INT_MIN
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if (sizeof(int) == sizeof(long)) {
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assert(scan_long("4294967295",&i)==9 && i==429496729); // overflow
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assert(scan_long("2147483648",&i)==9 && i==214748364); // overflow
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assert(scan_long("-2147483649",&i)==10 && i==-214748364); // underflow
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} else {
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assert(scan_long("9223372036854775807",&i)==19 && i==0x7fffffffffffffffull); // LONG_MAX
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assert(scan_long("-9223372036854775808",&i)==20 && i==(long long)0x8000000000000000ull); // LONG_MIN
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}
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i=42;
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assert(scan_longn("7",0,&i)==0 && i==42);
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assert(scan_longn("-7",1,&i)==0 && i==42);
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assert(scan_longn("+7",1,&i)==0 && i==42);
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assert(scan_longn("7",1,&i)==1 && i==7);
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assert(scan_longn("-7",2,&i)==2 && i==-7);
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assert(scan_longn("+7",2,&i)==2 && i==7);
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return 0;
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}
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#endif
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