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void |
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_constant(sv) |
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PREINIT: |
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#ifdef dXSTARG |
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dXSTARG; /* Faster if we have it. */ |
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#else |
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dTARGET; |
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#endif |
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STRLEN len; |
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int type; |
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IV iv; |
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/* NV nv; Uncomment this if you need to return NVs */ |
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/* const char *pv; Uncomment this if you need to return PVs */ |
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INPUT: |
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SV * sv; |
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const char * s = SvPV(sv, len); |
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PPCODE: |
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/* Change this to _error_constant(aTHX_ s, len, &iv, &nv); |
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if you need to return both NVs and IVs */ |
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type = _error_constant(aTHX_ s, len, &iv); |
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/* Return 1 or 2 items. First is error message, or undef if no error. |
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Second, if present, is found value */ |
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switch (type) { |
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case PERL_constant_NOTFOUND: |
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0
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sv = |
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0
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sv_2mortal(newSVpvf("%s is not a valid ZMQ::Raw::Error macro", s)); |
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0
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PUSHs(sv); |
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0
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break; |
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case PERL_constant_NOTDEF: |
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0
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sv = sv_2mortal(newSVpvf( |
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"Your vendor has not defined ZMQ::Raw::Error macro %s, used", |
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s)); |
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0
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PUSHs(sv); |
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0
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break; |
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case PERL_constant_ISIV: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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100
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PUSHi(iv); |
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break; |
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/* Uncomment this if you need to return NOs |
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case PERL_constant_ISNO: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHs(&PL_sv_no); |
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break; */ |
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/* Uncomment this if you need to return NVs |
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case PERL_constant_ISNV: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHn(nv); |
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break; */ |
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/* Uncomment this if you need to return PVs |
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case PERL_constant_ISPV: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHp(pv, strlen(pv)); |
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break; */ |
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/* Uncomment this if you need to return PVNs |
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case PERL_constant_ISPVN: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHp(pv, iv); |
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break; */ |
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/* Uncomment this if you need to return SVs |
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case PERL_constant_ISSV: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHs(sv); |
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break; */ |
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/* Uncomment this if you need to return UNDEFs |
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case PERL_constant_ISUNDEF: |
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break; */ |
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/* Uncomment this if you need to return UVs |
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case PERL_constant_ISUV: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHu((UV)iv); |
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break; */ |
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/* Uncomment this if you need to return YESs |
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case PERL_constant_ISYES: |
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EXTEND(SP, 1); |
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PUSHs(&PL_sv_undef); |
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PUSHs(&PL_sv_yes); |
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break; */ |
85
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default: |
86
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0
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sv = sv_2mortal(newSVpvf( |
87
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"Unexpected return type %d while processing ZMQ::Raw::Error macro %s, used", |
88
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type, s)); |
89
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0
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PUSHs(sv); |
90
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} |