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spa: add locale independent spa_dtoa

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And use this in spa_json_format_float() where we also avoid invalid
json floats.
Use json float format in some places where we serialize json floats.
Add a unit test.

See #2223
This commit is contained in:
Wim Taymans 2022-03-21 10:41:44 +01:00
parent 5f4d031db0
commit 2b16df4e89
6 changed files with 40 additions and 13 deletions
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12
test/test-spa-json.c
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@ -247,6 +247,7 @@ PWTEST(json_float)
};
float v;
unsigned i;
char buf1[128], buf2[128], *b1 = buf1, *b2 = buf2;
pwtest_int_eq(spa_json_parse_float("", 0, &v), 0);
@ -260,6 +261,17 @@ PWTEST(json_float)
pwtest_int_gt(spa_json_parse_float(val[i].str, strlen(val[i].str), &v), 0);
pwtest_double_eq(v, val[i].val);
}
pwtest_ptr_eq(spa_json_format_float(buf1, sizeof(buf1), 0.0f), b1);
pwtest_str_eq(buf1, "0.000000");
pwtest_ptr_eq(spa_json_format_float(buf1, sizeof(buf1), NAN), b1);
pwtest_str_eq(buf1, "0.000000");
pwtest_ptr_eq(spa_json_format_float(buf1, sizeof(buf1), INFINITY), b1);
pwtest_ptr_eq(spa_json_format_float(buf2, sizeof(buf2), FLT_MAX), b2);
pwtest_str_eq(buf1, buf2);
pwtest_ptr_eq(spa_json_format_float(buf1, sizeof(buf1), -INFINITY), b1);
pwtest_ptr_eq(spa_json_format_float(buf2, sizeof(buf2), FLT_MIN), b2);
pwtest_str_eq(buf1, buf2);
return PWTEST_PASS;
}