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- EEEEXXXXTTTTCCCCEEEENNNNTTTTRRRRYYYY((((1111)))) EEEEXXXXTTTTCCCCEEEENNNNTTTTRRRRYYYY((((1111))))
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- NNNNAAAAMMMMEEEE
- extcentry - extract FORTRAN-callable entry points from a C file
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- eeeexxxxttttcccceeeennnnttttrrrryyyy infile outfile
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _E_x_t_c_e_n_t_r_y is used to extract C functions for which FORTRAN-callable
- interface routines (_w_r_a_p_p_e_r_s) are to be generated by the program
- _m_k_f_2_c(1). _E_x_t_c_e_n_t_r_y accepts as input any C file (_i_n_f_i_l_e), and outputs
- (to _o_u_t_f_i_l_e) only those portions which are surrounded by the special
- comments /* _C_E_N_T_R_Y */ and /* _E_N_D_C_E_N_T_R_Y */.
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- The first step in generating a FORTRAN-to-C interface routine is to
- surround only those C functions for which entry points are to be
- generated by these special comments and to run the file through
- _e_x_t_c_e_n_t_r_y. The FORTRAN-to-C interface generator program _m_k_f_2_c can then be
- invoked on the resultant file to generate the assembly language _w_r_a_p_p_e_r.
- This is necessary since _m_k_f_2_c understands only a limited subset of the C
- grammar, and cannot parse such constructs as external declarations,
- typedefs, and C-preprocessor directives.
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- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- mkf2c(1)
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- PPPPaaaaggggeeee 1111
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