dlls/msvcrt/tests/scanf.c

   1 /*
   2  * Unit test suite for *scanf functions.
   3  *
   4  * Copyright 2002 Uwe Bonnes
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdio.h>
  22
  23 #include "wine/test.h"
  24
  25 static void test_sscanf( void )
  26 {
  27     char buffer[100], buffer1[100];
  28     char format[20];
  29     int result, ret;
  30     char c;
  31     float res1= -82.6267f, res2= 27.76f, res11, res12;
  32     static const char pname[]=" St. Petersburg, Florida\n";
  33     int hour=21,min=59,sec=20;
  34     int  number,number_so_far;
  35
  36
  37     /* check EOF */
  38     strcpy(buffer,"");
  39     ret = sscanf(buffer, "%d", &result);
  40     ok( ret == EOF,"sscanf returns %x instead of %x\n", ret, EOF );
  41
  42     /* check %x */
  43     strcpy(buffer,"0x519");
  44     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n"  );
  45     ok( result == 0x519,"sscanf reads %x instead of %x\n", result, 0x519 );
  46
  47     strcpy(buffer,"0x51a");
  48     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
  49     ok( result == 0x51a ,"sscanf reads %x instead of %x\n", result, 0x51a );
  50
  51     strcpy(buffer,"0x51g");
  52     ok( sscanf(buffer, "%x", &result) == 1, "sscanf failed\n" );
  53     ok( result == 0x51, "sscanf reads %x instead of %x\n", result, 0x51 );
  54
  55     result = 0;
  56     ret = sscanf("-1", "%x", &result);
  57     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
  58     ok(result == -1, "Read %d, expected -1\n", result);
  59
  60     /* check % followed by any char */
  61     strcpy(buffer,"\"%12@");
  62     strcpy(format,"%\"%%%d%@");  /* work around gcc format check */
  63     ok( sscanf(buffer, format, &result) == 1, "sscanf failed\n" );
  64     ok( result == 12, "sscanf reads %x instead of %x\n", result, 12 );
  65
  66     /* Check float */
  67     ret = sprintf(buffer,"%f %f",res1, res2);
  68     ret = sscanf(buffer,"%f%f",&res11, &res12);
  69     ok( (res11 == res1) && (res12 == res2), "Error reading floats\n");
  70
  71     /* check strings */
  72     ret = sprintf(buffer," %s", pname);
  73     ret = sscanf(buffer,"%*c%[^\n]",buffer1);
  74     ok( ret == 1, "Error with format \"%s\"\n","%*c%[^\n]");
  75     ok( strncmp(pname,buffer1,strlen(buffer1)) == 0, "Error with \"%s\" \"%s\"\n",pname, buffer1);
  76
  77     ret = sscanf("abcefgdh","%*[a-cg-e]%c",&buffer[0]);
  78     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cg-e]%c");
  79     ok( buffer[0] == 'd', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
  80
  81     ret = sscanf("abcefgdh","%*[a-cd-dg-e]%c",&buffer[0]);
  82     ok( ret == 1, "Error with format \"%s\"\n","%*[a-cd-dg-e]%c");
  83     ok( buffer[0] == 'h', "Error with \"abcefgdh\" \"%c\"\n", buffer[0]);
  84
  85     /* check digits */
  86     ret = sprintf(buffer,"%d:%d:%d",hour,min,sec);
  87     ret = sscanf(buffer,"%d%n",&number,&number_so_far);
  88     ok(ret == 1 , "problem with format arg \"%%d%%n\"\n");
  89     ok(number == hour,"Read wrong arg %d instead of %d\n",number, hour);
  90     ok(number_so_far == 2,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
  91
  92     ret = sscanf(buffer+2,"%*c%n",&number_so_far);
  93     ok(ret == 0 , "problem with format arg \"%%*c%%n\"\n");
  94     ok(number_so_far == 1,"Read wrong arg for \"%%n\" %d instead of 2\n",number_so_far);
  95
  96     /* Check %i according to bug 1878 */
  97     strcpy(buffer,"123");
  98     ret = sscanf(buffer, "%i", &result);
  99     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 100     ok(result == 123, "Wrong number read\n");
 101     result = 0;
 102     ret = sscanf("-1", "%i", &result);
 103     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 104     ok(result == -1, "Read %d, expected -1\n", result);
 105     ret = sscanf(buffer, "%d", &result);
 106     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 107     ok(result == 123, "Wrong number read\n");
 108     result = 0;
 109     ret = sscanf("-1", "%d", &result);
 110     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 111     ok(result == -1, "Read %d, expected -1\n", result);
 112
 113     /* Check %i for octal and hexadecimal input */
 114     result = 0;
 115     strcpy(buffer,"017");
 116     ret = sscanf(buffer, "%i", &result);
 117     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 118     ok(result == 15, "Wrong number read\n");
 119     result = 0;
 120     strcpy(buffer,"0x17");
 121     ret = sscanf(buffer, "%i", &result);
 122     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 123     ok(result == 23, "Wrong number read\n");
 124
 125     /* %o */
 126     result = 0;
 127     ret = sscanf("-1", "%o", &result);
 128     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 129     ok(result == -1, "Read %d, expected -1\n", result);
 130
 131     /* %u */
 132     result = 0;
 133     ret = sscanf("-1", "%u", &result);
 134     ok(ret == 1, "Wrong number of arguments read: %d (expected 1)\n", ret);
 135     ok(result == -1, "Read %d, expected -1\n", result);
 136
 137     /* Check %c */
 138     strcpy(buffer,"a");
 139     c = 0x55;
 140     ret = sscanf(buffer, "%c", &c);
 141     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 142     ok(c == 'a', "Field incorrect: '%c'\n", c);
 143
 144     strcpy(buffer," a");
 145     c = 0x55;
 146     ret = sscanf(buffer, "%c", &c);
 147     ok(ret == 1, "Wrong number of arguments read: %d\n", ret);
 148     ok(c == ' ', "Field incorrect: '%c'\n", c);
 149
 150     strcpy(buffer,"18:59");
 151     c = 0x55;
 152     ret = sscanf(buffer, "%d:%d%c", &hour, &min, &c);
 153     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
 154     ok(hour == 18, "Field 1 incorrect: %d\n", hour);
 155     ok(min == 59, "Field 2 incorrect: %d\n", min);
 156     ok(c == 0x55, "Field 3 incorrect: 0x%02x\n", c);
 157
 158     /* Check %n (also whitespace in format strings and %s) */
 159     buffer[0]=0; buffer1[0]=0;
 160     ret = sscanf("abc   def", "%s %n%s", buffer, &number_so_far, buffer1);
 161     ok(strcmp(buffer, "abc")==0, "First %%s read incorrectly: %s\n", buffer);
 162     ok(strcmp(buffer1,"def")==0, "Second %%s read incorrectly: %s\n", buffer1);
 163     ok(number_so_far==6, "%%n yielded wrong result: %d\n", number_so_far);
 164     ok(ret == 2, "%%n shouldn't count as a conversion: %d\n", ret);
 165
 166     /* Check where %n matches to EOF in buffer */
 167     strcpy(buffer, "3:45");
 168     ret = sscanf(buffer, "%d:%d%n", &hour, &min, &number_so_far);
 169     ok(ret == 2, "Wrong number of arguments read: %d\n", ret);
 170     ok(number_so_far == 4, "%%n yielded wrong result: %d\n", number_so_far);
 171 }
 172
 173 START_TEST(scanf)
 174 {
 175     test_sscanf();
 176 }