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annotate src/message_test.c @ 27415:ff48162d4ad6

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Added tag v8.2.4235 for changeset b2d0357fec12d8746ef5cec9d9048ddc161bef66
author Bram Moolenaar <Bram@vim.org>
date Thu, 27 Jan 2022 22:00:04 +0100
parents 9d304d363ab6
children 4dcccb2673fe
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /* vi:set ts=8 sts=4 sw=4 noet:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 *
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5 * Do ":help uganda" in Vim to read copying and usage conditions.
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6 * Do ":help credits" in Vim to see a list of people who contributed.
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7 * See README.txt for an overview of the Vim source code.
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8 */
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9
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10 /*
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11 * message_test.c: Unittests for message.c
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12 */
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13
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14 #undef NDEBUG
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15 #include <assert.h>
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16
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17 // Must include main.c because it contains much more than just main()
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18 #define NO_VIM_MAIN
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19 #include "main.c"
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20
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21 // This file has to be included because some of the tested functions are
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22 // static.
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23 #include "message.c"
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24
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25 #ifndef MIN
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26 # define MIN(x,y) ((x) < (y) ? (x) : (y))
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27 #endif
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28
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29 // These formats are not standard in C printf() function.
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30 // Use a global variable rather than a literal format to disable
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31 // -Wformat compiler warnings:
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32 //
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33 // - warning: '0' flag used with ‘%p’ gnu_printf format
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34 // - warning: format ‘%S’ expects argument of type ‘wchar_t *’, but argument 4 has type ‘char *’
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35 // - warning: unknown conversion type character ‘b’ in format
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36 //
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37 // These formats are in practise only used from vim script printf()
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38 // function and never as literals in C code.
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39 char *fmt_012p = "%012p";
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40 char *fmt_5S = "%5S";
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41 char *fmt_06b = "%06b";
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42
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43 /*
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44 * Test trunc_string().
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45 */
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46 static void
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47 test_trunc_string(void)
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48 {
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49 char_u *buf; /*allocated every time to find uninit errors */
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50 char_u *s;
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51
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52 // Should not write anything to destination if buflen is 0.
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53 trunc_string((char_u *)"", NULL, 1, 0);
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54
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55 // Truncating an empty string does nothing.
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56 buf = alloc(1);
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57 trunc_string((char_u *)"", buf, 1, 1);
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58 assert(buf[0] == NUL);
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59 vim_free(buf);
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60
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61 // in place
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62 buf = alloc(40);
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63 STRCPY(buf, "text");
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64 trunc_string(buf, buf, 20, 40);
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65 assert(STRCMP(buf, "text") == 0);
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66 vim_free(buf);
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67
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68 buf = alloc(40);
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69 STRCPY(buf, "a short text");
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70 trunc_string(buf, buf, 20, 40);
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71 assert(STRCMP(buf, "a short text") == 0);
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72 vim_free(buf);
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73
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74 buf = alloc(40);
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75 STRCPY(buf, "a text tha just fits");
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76 trunc_string(buf, buf, 20, 40);
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77 assert(STRCMP(buf, "a text tha just fits") == 0);
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78 vim_free(buf);
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79
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80 buf = alloc(40);
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81 STRCPY(buf, "a text that nott fits");
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82 trunc_string(buf, buf, 20, 40);
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83 assert(STRCMP(buf, "a text t...nott fits") == 0);
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84 vim_free(buf);
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85
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86 // copy from string to buf
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87 buf = alloc(40);
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88 s = vim_strsave((char_u *)"text");
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89 trunc_string(s, buf, 20, 40);
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90 assert(STRCMP(buf, "text") == 0);
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91 vim_free(buf);
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92 vim_free(s);
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93
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94 buf = alloc(40);
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95 s = vim_strsave((char_u *)"a text that fits");
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96 trunc_string(s, buf, 34, 40);
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97 assert(STRCMP(buf, "a text that fits") == 0);
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98 vim_free(buf);
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99 vim_free(s);
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100
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101 buf = alloc(40);
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102 s = vim_strsave((char_u *)"a short text");
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103 trunc_string(s, buf, 20, 40);
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104 assert(STRCMP(buf, "a short text") == 0);
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105 vim_free(buf);
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106 vim_free(s);
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107
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108 buf = alloc(40);
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109 s = vim_strsave((char_u *)"a text tha just fits");
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110 trunc_string(s, buf, 20, 40);
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111 assert(STRCMP(buf, "a text tha just fits") == 0);
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112 vim_free(buf);
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113 vim_free(s);
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114
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115 buf = alloc(40);
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116 s = vim_strsave((char_u *)"a text that nott fits");
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117 trunc_string(s, buf, 20, 40);
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118 assert(STRCMP(buf, "a text t...nott fits") == 0);
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119 vim_free(buf);
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120 vim_free(s);
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121 }
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122
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123 /*
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124 * Test trunc_string() with mbyte chars.
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125 */
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126 static void
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127 test_trunc_string_mbyte(void)
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128 {
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129 char_u *buf; // allocated every time to find uninit errors
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130 char_u *s;
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131
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132 buf = alloc(40);
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133 s = vim_strsave((char_u *)"Ä text tha just fits");
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134 trunc_string(s, buf, 20, 40);
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135 assert(STRCMP(buf, "Ä text tha just fits") == 0);
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136 vim_free(buf);
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137 vim_free(s);
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138
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139 buf = alloc(40);
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140 s = vim_strsave((char_u *)"a text ÄÖÜä nott fits");
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141 trunc_string(s, buf, 20, 40);
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142 assert(STRCMP(buf, "a text Ä...nott fits") == 0);
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143 vim_free(buf);
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144 vim_free(s);
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145
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146 buf = alloc(40);
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147 s = vim_strsave((char_u *)"a text that not fitsÄ");
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148 trunc_string(s, buf, 20, 40);
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149 assert(STRCMP(buf, "a text t...not fitsÄ") == 0);
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150 vim_free(buf);
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151 vim_free(s);
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152 }
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153
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154 /*
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155 * Test vim_snprintf() with a focus on checking that truncation is
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156 * correct when buffer is small, since it cannot be tested from
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157 * vim scrip tests. Check that:
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158 * - no buffer overflows happens (with valgrind or asan)
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159 * - output string is always NUL terminated.
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160 *
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161 * Not all formats of vim_snprintf() are checked here. They are
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162 * checked more exhaustively in Test_printf*() vim script tests.
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163 */
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164 static void
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165 test_vim_snprintf(void)
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166 {
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167 int n;
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168 size_t bsize;
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169 int bsize_int;
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170 void *ptr = (void *)0x87654321;
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171
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172 // Loop on various buffer sizes to make sure that truncation of
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173 // vim_snprintf() is correct.
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174 for (bsize = 0; bsize < 15; ++bsize)
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175 {
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176 bsize_int = (int)bsize - 1;
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177
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178 // buf is the heap rather than in the stack
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179 // so valgrind can detect buffer overflows if any.
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180 // Use malloc() rather than alloc() as test checks with 0-size
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181 // buffer and its content should then never be used.
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182 char *buf = malloc(bsize);
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183
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184 n = vim_snprintf(buf, bsize, "%d", 1234567);
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185 assert(n == 7);
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186 assert(bsize == 0 || STRNCMP(buf, "1234567", bsize_int) == 0);
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187 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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188
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189 n = vim_snprintf(buf, bsize, "%ld", 1234567L);
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190 assert(n == 7);
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191 assert(bsize == 0 || STRNCMP(buf, "1234567", bsize_int) == 0);
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192 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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193
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194 n = vim_snprintf(buf, bsize, "%9ld", 1234567L);
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195 assert(n == 9);
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196 assert(bsize == 0 || STRNCMP(buf, " 1234567", bsize_int) == 0);
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197 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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198
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199 n = vim_snprintf(buf, bsize, "%-9ld", 1234567L);
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200 assert(n == 9);
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201 assert(bsize == 0 || STRNCMP(buf, "1234567 ", bsize_int) == 0);
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202 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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203
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204 n = vim_snprintf(buf, bsize, "%x", 0xdeadbeef);
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205 assert(n == 8);
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206 assert(bsize == 0 || STRNCMP(buf, "deadbeef", bsize_int) == 0);
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207 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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208
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209 n = vim_snprintf(buf, bsize, fmt_06b, (uvarnumber_T)12);
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210 assert(n == 6);
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211 assert(bsize == 0 || STRNCMP(buf, "001100", bsize_int) == 0);
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212 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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213
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214 #ifdef FEAT_FLOAT
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215 n = vim_snprintf(buf, bsize, "%f", 1.234);
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216 assert(n == 8);
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217 assert(bsize == 0 || STRNCMP(buf, "1.234000", bsize_int) == 0);
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diff changeset
218 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
219
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diff changeset
220 n = vim_snprintf(buf, bsize, "%e", 1.234);
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diff changeset
221 assert(n == 12);
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diff changeset
222 assert(bsize == 0 || STRNCMP(buf, "1.234000e+00", bsize_int) == 0);
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diff changeset
223 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
224
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diff changeset
225 n = vim_snprintf(buf, bsize, "%f", 0.0/0.0);
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diff changeset
226 assert(n == 3);
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diff changeset
227 assert(bsize == 0 || STRNCMP(buf, "nan", bsize_int) == 0);
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diff changeset
228 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
229
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diff changeset
230 n = vim_snprintf(buf, bsize, "%f", 1.0/0.0);
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diff changeset
231 assert(n == 3);
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diff changeset
232 assert(bsize == 0 || STRNCMP(buf, "inf", bsize_int) == 0);
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diff changeset
233 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
234
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diff changeset
235 n = vim_snprintf(buf, bsize, "%f", -1.0/0.0);
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diff changeset
236 assert(n == 4);
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diff changeset
237 assert(bsize == 0 || STRNCMP(buf, "-inf", bsize_int) == 0);
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diff changeset
238 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
239
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diff changeset
240 n = vim_snprintf(buf, bsize, "%f", -0.0);
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diff changeset
241 assert(n == 9);
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diff changeset
242 assert(bsize == 0 || STRNCMP(buf, "-0.000000", bsize_int) == 0);
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diff changeset
243 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
244 #endif
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diff changeset
245
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diff changeset
246 n = vim_snprintf(buf, bsize, "%s", "漢語");
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diff changeset
247 assert(n == 6);
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diff changeset
248 assert(bsize == 0 || STRNCMP(buf, "漢語", bsize_int) == 0);
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249 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
250
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251 n = vim_snprintf(buf, bsize, "%8s", "漢語");
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diff changeset
252 assert(n == 8);
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diff changeset
253 assert(bsize == 0 || STRNCMP(buf, " 漢語", bsize_int) == 0);
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diff changeset
254 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
255
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diff changeset
256 n = vim_snprintf(buf, bsize, "%-8s", "漢語");
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diff changeset
257 assert(n == 8);
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diff changeset
258 assert(bsize == 0 || STRNCMP(buf, "漢語 ", bsize_int) == 0);
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diff changeset
259 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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260
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diff changeset
261 n = vim_snprintf(buf, bsize, "%.3s", "漢語");
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diff changeset
262 assert(n == 3);
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diff changeset
263 assert(bsize == 0 || STRNCMP(buf, "漢", bsize_int) == 0);
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diff changeset
264 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
265
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diff changeset
266 n = vim_snprintf(buf, bsize, fmt_5S, "foo");
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diff changeset
267 assert(n == 5);
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diff changeset
268 assert(bsize == 0 || STRNCMP(buf, " foo", bsize_int) == 0);
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diff changeset
269 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
270
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diff changeset
271 n = vim_snprintf(buf, bsize, "%%%%%%");
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diff changeset
272 assert(n == 3);
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diff changeset
273 assert(bsize == 0 || STRNCMP(buf, "%%%", bsize_int) == 0);
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diff changeset
274 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
275
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276 n = vim_snprintf(buf, bsize, "%c%c", 1, 2);
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diff changeset
277 assert(n == 2);
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diff changeset
278 assert(bsize == 0 || STRNCMP(buf, "\x01\x02", bsize_int) == 0);
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diff changeset
279 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
280
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diff changeset
281 // %p format is not tested in vim script tests Test_printf*()
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diff changeset
282 // as it only makes sense in C code.
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diff changeset
283 // NOTE: SunOS libc doesn't use the prefix "0x" on %p.
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diff changeset
284 #ifdef SUN_SYSTEM
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diff changeset
285 # define PREFIX_LEN 0
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diff changeset
286 # define PREFIX_STR1 ""
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diff changeset
287 # define PREFIX_STR2 "00"
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diff changeset
288 #else
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diff changeset
289 # define PREFIX_LEN 2
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diff changeset
290 # define PREFIX_STR1 "0x"
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diff changeset
291 # define PREFIX_STR2 "0x"
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diff changeset
292 #endif
19011
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diff changeset
293 n = vim_snprintf(buf, bsize, "%p", ptr);
19352
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diff changeset
294 assert(n == 8 + PREFIX_LEN);
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diff changeset
295 assert(bsize == 0
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diff changeset
296 || STRNCMP(buf, PREFIX_STR1 "87654321", bsize_int) == 0);
19011
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diff changeset
297 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
298
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diff changeset
299 n = vim_snprintf(buf, bsize, fmt_012p, ptr);
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diff changeset
300 assert(n == 12);
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diff changeset
301 assert(bsize == 0
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diff changeset
302 || STRNCMP(buf, PREFIX_STR2 "0087654321", bsize_int) == 0);
19011
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diff changeset
303 assert(bsize == 0 || buf[MIN(n, bsize_int)] == '\0');
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diff changeset
304
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diff changeset
305 free(buf);
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diff changeset
306 }
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diff changeset
307 }
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diff changeset
308
9542
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
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parents:
diff changeset
309 int
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
310 main(int argc, char **argv)
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
311 {
20007
aadd1cae2ff5 patch 8.2.0559: clearing a struct is verbose
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diff changeset
312 CLEAR_FIELD(params);
9542
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diff changeset
313 params.argc = argc;
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
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parents:
diff changeset
314 params.argv = argv;
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
315 common_init(&params);
18999
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diff changeset
316
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diff changeset
317 set_option_value((char_u *)"encoding", 0, (char_u *)"utf-8", 0);
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diff changeset
318 init_chartab();
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diff changeset
319 test_trunc_string();
24709
9d304d363ab6 patch 8.2.2893: multi-byte text in popup title shows up wrong
Bram Moolenaar <Bram@vim.org>
parents: 23946
diff changeset
320 test_trunc_string_mbyte();
19011
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diff changeset
321 test_vim_snprintf();
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diff changeset
322
18999
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diff changeset
323 set_option_value((char_u *)"encoding", 0, (char_u *)"latin1", 0);
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diff changeset
324 init_chartab();
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parents:
diff changeset
325 test_trunc_string();
19011
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diff changeset
326 test_vim_snprintf();
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diff changeset
327
9542
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diff changeset
328 return 0;
00ee8d8c2e0c commit https://github.com/vim/vim/commit/502ae4ba63561c98ac69af26cd9883bfd18d225f
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
329 }