mirror of https://github.com/cc65/cc65.git
79 lines
3.5 KiB
C
79 lines
3.5 KiB
C
/*****************************************************************************/
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/* */
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/* filepos.c */
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/* */
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/* File position data structure */
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/* */
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/* */
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/* */
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/* (C) 1998-2011, Ullrich von Bassewitz */
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/* Roemerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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/* common */
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#include "filepos.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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void InitFilePos (FilePos* P)
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/* Initialize the file position (set all fields to zero) */
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{
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P->Line = 0;
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P->Col = 0;
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P->Name = 0;
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}
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int CompareFilePos (const FilePos* P1, const FilePos* P2)
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/* Compare two file positions. Return zero if both are equal, return a value
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** > 0 if P1 is greater and P2, and a value < 0 if P1 is less than P2. The
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** compare rates file index over line over column.
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*/
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{
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if (P1->Name > P2->Name) {
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return 1;
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} else if (P1->Name < P2->Name) {
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return -1;
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} else if (P1->Line > P2->Line) {
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return 1;
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} else if (P1->Line < P2->Line) {
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return -1;
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} else if (P1->Col > P2->Col) {
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return 1;
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} else if (P1->Col < P2->Col) {
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return -1;
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} else {
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return 0;
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}
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}
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