REAL FUNCTION sla_RANDOM (XSEED) *+ * - - - - - - - * R A N D O M * - - - - - - - * * Generate pseudo-random real number in the range 0 <= X < 1. * * (single precision) * * !!! Microsoft Fortran dependent !!! * * Given (but used first time only): * XSEED real an arbitrary real number * * The value returned is a pseudo-random number such that * 0 <= sla_RANDOM < 1. * * Called: RANDOM (Microsoft run-time library) * * P.T.Wallace Starlink 7 November 2003 * * * License: * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program (see SLA_CONDITIONS); if not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, * Boston, MA 02110-1301 USA * *- IMPLICIT NONE REAL XSEED REAL X LOGICAL FIRST SAVE FIRST DATA FIRST /.TRUE./ IF (FIRST) THEN CALL SEED(NINT(MOD(XSEED*1.234E7,32E3))) ! Microsoft Fortran FIRST=.FALSE. END IF CALL RANDOM(X) ! Microsoft Fortran sla_RANDOM=X END