SQLite: Check-in [637ee587]

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Overview

Comment:	Fix a compiler warning. (CVS 604)
Downloads:	Tarball \| ZIP archive \| SQL archive
Timelines:	family \| ancestors \| descendants \| both \| trunk
Files:	files \| file ages \| folders
SHA1:	637ee587b5438c54ba2d8bd8fc15e584abb70946
User & Date:	drh 2002-06-02 18:22:06

Context

2002-06-06
18:54		Added the %fallback directive to the lemon parser generator and used this in the parser to make the parse tables much smaller. This reduced the size of the library by 15K. (CVS 605) (check-in: 7ac5bd29 user: drh tags: trunk)
2002-06-02
18:22		Fix a compiler warning. (CVS 604) (check-in: 637ee587 user: drh tags: trunk)
18:19		Add the ability to parse FOREIGN KEYs. Foreign keys are still ignored, but at least they now do not cause a syntax error. (CVS 603) (check-in: 6fdcee3c user: drh tags: trunk)

Changes

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Changes to src/expr.c.

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.68 2002/06/02 18:19:00 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Construct a new expression node and return a pointer to it.  Memory
** for this node is obtained from sqliteMalloc().  The calling function
................................................................................
int sqliteExprIsInteger(Expr *p, int *pValue){
  switch( p->op ){
    case TK_INTEGER: {
      *pValue = atoi(p->token.z);
      return 1;
    }
    case TK_STRING: {
      char *z = p->token.z;
      int n = p->token.n;
      if( n>0 && z=='-' ){ z++; n--; }
      while( n>0 && *z && isdigit(*z) ){ z++; n--; }
      if( n==0 ){
        *pValue = atoi(p->token.z);
        return 1;
      }
      break;
    }

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.69 2002/06/02 18:22:06 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Construct a new expression node and return a pointer to it.  Memory
** for this node is obtained from sqliteMalloc().  The calling function
................................................................................
int sqliteExprIsInteger(Expr *p, int *pValue){
  switch( p->op ){
    case TK_INTEGER: {
      *pValue = atoi(p->token.z);
      return 1;
    }
    case TK_STRING: {
      const char *z = p->token.z;
      int n = p->token.n;
      if( n>0 && z[0]=='-' ){ z++; n--; }
      while( n>0 && *z && isdigit(*z) ){ z++; n--; }
      if( n==0 ){
        *pValue = atoi(p->token.z);
        return 1;
      }
      break;
    }