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  • src/examples/sum.c

    r52f85e0 rd3b7937  
    1010// Created On       : Wed May 27 17:56:53 2015
    1111// Last Modified By : Peter A. Buhr
    12 // Last Modified On : Sat Feb  6 11:57:42 2016
    13 // Update Count     : 182
     12// Last Modified On : Thu Jan 28 17:05:53 2016
     13// Update Count     : 130
    1414//
    1515
     
    3434// Required to satisfy sumable as char does not have addition.
    3535const char 0;
    36 char ?+?( char t1, char t2 ) { return (int)t1 + t2; }   // cast forces integer addition, otherwise recursion
    37 char ?+=?( char *t1, char t2 ) { *t1 = *t1 + t2; return *t1; }
    38 char ++?( char *t ) { *t += 1; return *t; }
    39 char ?++( char *t ) { char temp = *t; *t += 1; return temp; }
     36char ?+?( char op1, char op2 ) { return (int)op1 + op2; } // cast forces integer addition or recursion
     37char ++?( char *op ) { *op += 1; return *op; }
     38char ?++( char *op ) { char temp = *op; *op += 1; return temp; }
    4039
    4140int main( void ) {
    4241        const int low = 5, High = 15, size = High - low;
     42
    4343        ofstream *sout = ofstream_stdout();
    4444
    45         char s = 0, a[size], v = low;
     45        char s = 0, a[size];
     46        char v = low;
    4647        for ( int i = 0; i < size; i += 1, v += 1 ) {
    4748                s += v;
    4849                a[i] = v;
    49         } // for
     50        }
    5051        sout | "sum from " | low | " to " | High | " is "
    5152                 | (int)sum( size, a ) | ", check " | (int)s | endl;
    5253
    53         int s = 0, a[size], v = low;
     54        int s = 0, a[size];
     55        int v = low;
    5456        for ( int i = 0; i < size; i += 1, v += 1 ) {
    5557                s += (int)v;
    5658                a[i] = (int)v;
    57         } // for
     59        }
    5860        sout | "sum from " | low | " to " | High | " is "
    5961                 | sum( size, (int *)a ) | ", check " | (int)s | endl;
    6062
    61         float s = 0.0, a[size], v = low / 10.0;
     63        float s = 0.0, a[size];
     64        float v = low / 10.0;
    6265        for ( int i = 0; i < size; i += 1, v += 0.1f ) {
    6366                s += (float)v;
    6467                a[i] = (float)v;
    65         } // for
     68        }
    6669        sout | "sum from " | low / 10.0 | " to " | High / 10.0 | " is "
    6770                 | sum( size, (float *)a ) | ", check " | (float)s | endl;
    6871
    69         double s = 0, a[size], v = low / 10.0;
     72        double s = 0.0, a[size];
     73        double v = low / 10.0;
    7074        for ( int i = 0; i < size; i += 1, v += 0.1 ) {
    7175                s += (double)v;
    7276                a[i] = (double)v;
    73         } // for
     77        }
    7478        sout | "sum from " | low / 10.0 | " to " | High / 10.0 | " is "
    7579                 | sum( size, (double *)a ) | ", check " | (double)s | endl;
    76 
    77         struct S { int i, j; } 0 = { 0, 0 }, 1 = { 1, 1 };
    78         S ?+?( S t1, S t2 ) { S s = { t1.i + t2.i, t1.j + t2.j }; return s; }
    79         S ?+=?( S *t1, S t2 ) { *t1 = *t1 + t2; return *t1; }
    80         S ++?( S *t ) { *t += 1; return *t; }
    81         S ?++( S *t ) { S temp = *t; *t += 1; return temp; }
    82         ofstream * ?|?( ofstream * os, S v ) { return os | v.i | ' ' | v.j; }
    83 
    84         S s = 0, a[size], v = { low, low };
    85         for ( int i = 0; i < size; i += 1, v += (S)1 ) {
    86                 s += (S)v;
    87                 a[i] = (S)v;
    88         } // for
    89         sout | "sum from " | low | " to " | High | " is "
    90                  | sum( size, (S *)a ) | ", check " | (S)s | endl;
    9180} // main
    9281
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