1 /******************************************************************** 2 * COPYRIGHT: 3 * Copyright (c) 1999-2002, International Business Machines Corporation and 4 * others. All Rights Reserved. 5 ********************************************************************/ 6 7 #include "unicode/unum.h" 8 #include "unicode/ustring.h" 9 #include <stdio.h> 10 #include <stdlib.h> 11 12 static void uprintf(const UChar* str) { 13 char buf[256]; 14 u_austrcpy(buf, str); 15 printf("%s", buf); 16 } 17 18 void capi() { 19 UNumberFormat *fmt; 20 UErrorCode status = U_ZERO_ERROR; 21 /* The string "987654321.123" as UChars */ 22 UChar str[] = { 0x39, 0x38, 0x37, 0x36, 0x35, 0x34, 0x33, 23 0x32, 0x31, 0x30, 0x2E, 0x31, 0x32, 0x33, 0 }; 24 UChar buf[256]; 25 int32_t needed; 26 double a; 27 28 /* Create a formatter for the US locale */ 29 fmt = unum_open( 30 UNUM_DECIMAL, /* style */ 31 0, /* pattern */ 32 0, /* patternLength */ 33 "en_US", /* locale */ 34 0, /* parseErr */ 35 &status); 36 if (U_FAILURE(status)) { 37 printf("FAIL: unum_open\n"); 38 exit(1); 39 } 40 41 /* Use the formatter to parse a number. When using the C API, 42 we have to specify whether we want a double or a long in advance. 43 44 We pass in NULL for the position pointer in order to get the 45 default behavior which is to parse from the start. */ 46 a = unum_parseDouble(fmt, str, u_strlen(str), NULL, &status); 47 if (U_FAILURE(status)) { 48 printf("FAIL: unum_parseDouble\n"); 49 exit(1); 50 } 51 52 /* Show the result */ 53 printf("unum_parseDouble(\""); 54 uprintf(str); 55 printf("\") => %g\n", a); 56 57 /* Use the formatter to format the same number back into a string 58 in the US locale. The return value is the buffer size needed. 59 We're pretty sure we have enough space, but in a production 60 application one would check this value. 61 62 We pass in NULL for the UFieldPosition pointer because we don't 63 care to receive that data. */ 64 needed = unum_formatDouble(fmt, a, buf, 256, NULL, &status); 65 if (U_FAILURE(status)) { 66 printf("FAIL: format_parseDouble\n"); 67 exit(1); 68 } 69 70 /* Show the result */ 71 printf("unum_formatDouble(%g) => \"", a); 72 uprintf(buf); 73 printf("\"\n"); 74 75 /* Release the storage used by the formatter */ 76 unum_close(fmt); 77 } 78
