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francois |
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#include <stdio.h> |
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#include <math.h> |
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#include <string.h> |
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#include "m3d_const.h" |
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#include "m3d_hotes.h" |
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#include "m3d_struct.h" |
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#include "prototype.h" |
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#include <cstdlib> |
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void m3d_nastof(char *abuf,int *lg,float *resu,int *ierr) |
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{ |
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char tabel[MAX_LINE] ; |
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char tabel2[MAX_LINE] ; |
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char tabel3[MAX_LINE] ; |
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int gtrouve = 0 ; |
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int i = 0, nb = 0, j=0 ; |
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int i_e = 0, i_point = 0, i_plus = 0, i_moins = 0, i_sign = 0; |
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tabel2[0] = 0 ; |
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while (i<*lg) |
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{ |
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tabel[0] = 0 ; |
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strncat(tabel,abuf+i,1) ; |
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if (strcmp (tabel," ")) |
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{ |
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strncat(tabel2,tabel,1) ; |
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nb++ ; |
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} |
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i++ ; |
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} |
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if (nb==0) |
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{ |
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*resu = 0. ; |
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return ; |
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} |
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/* chaine de caracteres de dimension nb */ |
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i = 0 ; |
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while (i<nb) |
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{ |
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tabel[0] = 0 ; |
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strncat(tabel,tabel2+i,1) ; |
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if (!strcmp (tabel,"+")) i_sign ++ ; |
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else if (!strcmp (tabel,"-")) i_sign ++ ; |
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else if (!strcmp (tabel,".")) i_point ++ ; |
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else if (!strcmp (tabel,"E")) i_e ++ ; |
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else if (!strcmp (tabel,"e")) i_e ++ ; |
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i++ ; |
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} |
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if (i_e !=0) |
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{ |
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*resu = (float)atof(tabel2) ; |
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return ; |
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} |
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if (i_sign == 0) |
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{ |
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*resu = (float)atof(tabel2) ; |
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return ; |
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} |
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/* i_sign != 0 */ |
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/* lecture du premier caractere de la nouvelle chaine */ |
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tabel[0] = 0 ; |
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strncat(tabel,tabel2,1) ; |
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if (!strcmp (tabel,"-") || !strcmp (tabel,"+")) |
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{ |
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if (i_sign == 1) |
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{ |
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*resu = (float)atof(tabel2) ; |
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return ; |
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} |
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else |
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{ |
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tabel[0] = 0 ; |
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strncat(tabel,tabel2,1) ; |
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j = 1 ; |
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while (j<nb) |
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{ |
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tabel3[0] = 0 ; |
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strncat(tabel3,tabel2+j,1) ; |
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if ( !strcmp (tabel3,"-") || !strcmp (tabel3,"+") ) break ; |
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strncat(tabel,tabel2+j,1) ; |
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j++ ; |
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} |
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strncat(tabel,"E",1) ; |
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while (j<nb) |
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{ |
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strncat(tabel,tabel2+j,1) ; |
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j++ ; |
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} |
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*resu = (float)atof(tabel) ; |
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return ; |
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} |
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} |
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tabel[0] = 0 ; |
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strncat(tabel,tabel2,1) ; |
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j = 1 ; |
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while (j<nb) |
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{ |
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tabel3[0] = 0 ; |
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strncat(tabel3,tabel2+j,1) ; |
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if ( !strcmp (tabel3,"-") || !strcmp (tabel3,"+") ) break ; |
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strncat(tabel,tabel2+j,1) ; |
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j++ ; |
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} |
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strncat(tabel,"E",1) ; |
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while (j<nb) |
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{ |
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strncat(tabel,tabel2+j,1) ; |
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j++ ; |
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} |
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*resu = (float)atof(tabel) ; |
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return ; |
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} |
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