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Support long and long long types in TEST_PRINTF

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This change helps Unity parse and print correctly in cases where a long
or long long type is passed to TEST_PRINTF.

Example situations:

```C
// With %u:
TEST_PRINTF("%u %d\n", ((1ULL << 63) - 1), 5); //  --> prints 11982546 -1 (both arguments incorrect because only 4 of the 8 bytes were read out of the va_list)

// With %llu, UNITY_SUPPORT_64=0
TEST_PRINTF("%llu %d\n", ((1ULL << 63) - 1), 5); //  --> prints 4294967295 5 (first argument wrapped, second argument intact)

// With %llu, UNITY_SUPPORT_64=1
TEST_PRINTF("%llu %d\n", ((1ULL << 63) - 1), 5); //  --> prints 9223372036854775807 5 (both arguments correct)
```
This commit is contained in:
jonath.re@gmail.com
2022-07-27 02:39:14 +02:00
parent 3852926c00
commit 612aec09e8
2 changed files with 118 additions and 7 deletions
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12
docs/UnityConfigurationGuide.md
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@@ -240,7 +240,7 @@ _Example:_
Unity provides a simple (and very basic) printf-like string output implementation, which is able to print a string modified by the following format string modifiers:
- __%d__ - signed value (decimal)
- __%i__ - same as __%i__
- __%i__ - same as __%d__
- __%u__ - unsigned value (decimal)
- __%f__ - float/Double (if float support is activated)
- __%g__ - same as __%f__
@@ -252,6 +252,15 @@ Unity provides a simple (and very basic) printf-like string output implementatio
- __%s__ - a string (e.g. "string")
- __%%__ - The "%" symbol (escaped)
Length specifiers are also supported. If you are using long long types, make sure UNITY_SUPPORT_64 is true to ensure they are printed correctly.
- __%ld__ - signed long value (decimal)
- __%lld__ - signed long long value (decimal)
- __%lu__ - unsigned long value (decimal)
- __%llu__ - unsigned long long value (decimal)
- __%lx__ - unsigned long value (hexadecimal)
- __%llx__ - unsigned long long value (hexadecimal)
_Example:_
```C
@@ -267,6 +276,7 @@ TEST_PRINTF("Pointer %p\n", &a);
TEST_PRINTF("Character %c\n", 'F');
TEST_PRINTF("String %s\n", "My string");
TEST_PRINTF("Percent %%\n");
TEST_PRINTF("Unsigned long long %llu\n", 922337203685477580);
TEST_PRINTF("Color Red \033[41mFAIL\033[0m\n");
TEST_PRINTF("\n");
TEST_PRINTF("Multiple (%d) (%i) (%u) (%x)\n", -100, 0, 200, 0x12345);