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feat(str): add SStrVPrintf

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Adam Heinermann 2025-08-31 17:00:56 -07:00 • committed by fallenoak
parent 75dc4e57a6
commit 4b1904ad4e
3 changed files with 65 additions and 2 deletions
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51
test/String.cpp
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@ -3,6 +3,7 @@
#include "test/Test.hpp"
#include <cfloat>
#include <cstdarg>
#include <type_traits>
@ -384,6 +385,56 @@ TEST_CASE("SStrPrintf", "[string]") {
}
}
static size_t CallSStrVPrintf(char* dest, size_t maxchars, const char* format, ...) {
va_list va;
va_start(va, format);
auto length = SStrVPrintf(dest, maxchars, format, va);
va_end(va);
return length;
}
TEST_CASE("SStrVPrintf", "[string]") {
SECTION("fills dest with formatted string") {
char dest[100] = {};
auto length = CallSStrVPrintf(dest, sizeof(dest), "%s - %s", "foo", "bar");
REQUIRE(length == 9);
REQUIRE(!SStrCmp(dest, "foo - bar"));
}
SECTION("fills dest with int") {
char dest[100] = {};
auto length = CallSStrVPrintf(dest, sizeof(dest), "%d", 69);
REQUIRE(length == 2);
REQUIRE(!SStrCmp(dest, "69"));
}
SECTION("fills dest with empty string") {
char dest[100] = {};
auto length = CallSStrVPrintf(dest, sizeof(dest), "");
REQUIRE(length == 0);
REQUIRE(!SStrCmp(dest, ""));
}
SECTION("truncates when dest size is not large enough") {
char dest[4] = {};
auto length = CallSStrVPrintf(dest, sizeof(dest), "%s", "wowzers");
REQUIRE(length == 3);
REQUIRE(!SStrCmp(dest, "wow"));
}
SECTION("does nothing if maxchars is 0") {
char dest[10] = {};
auto length = CallSStrVPrintf(dest, 0, "%d", 69);
REQUIRE(length == 0);
REQUIRE(!SStrCmp(dest, ""));
}
}
TEST_CASE("SStrStr", "[string]") {
auto string = "foobar";