D2S - Double Precision <=> Single Precision conversion

D2S is a pair of programs, D2S and S2D, which convert a FORTRAN program from single precision to double precision and back again.

Files you may copy include:

• d2s_yylex.c;
• init.c;
• main.c;
• s2d_yylex.c;
• symbol.c;

• d2s_prb.f, sample input to D2S;
• s2d_prb.f, sample input to S2D;

• flbreak.c, which breaks long lines;
• fljoin.c, which rejoins broken lines;

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