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Replace std::snprintf() with wpi::format_to_n_c_str() (#5645)

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fmtlib uses consteval format string processing, which makes it more
efficient than std::snprintf().

snprintf()s in libuv, mpack, processstarter, and wpigui were left alone.
processstarter uses stdlib only, and wpigui only depends on imgui.

fmt::format_to_n() is analogous to std::format_to_n()
(https://en.cppreference.com/w/cpp/utility/format/format_to_n)

wpi::format_to_n_c_str() is a wrapper which adds the trailing NUL.
This commit is contained in:
Tyler Veness
2023-09-17 20:00:16 -07:00
committed by GitHub
parent bb39900353
commit 17f1062885
25 changed files with 190 additions and 112 deletions
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6
hal/src/main/native/sim/Notifier.cpp
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@@ -11,6 +11,7 @@
#include <string>
#include <wpi/SmallVector.h>
#include <wpi/StringExtras.h>
#include <wpi/condition_variable.h>
#include <wpi/mutex.h>
@@ -316,8 +317,9 @@ int32_t HALSIM_GetNotifierInfo(struct HALSIM_NotifierInfo* arr, int32_t size) {
if (num < size) {
arr[num].handle = handle;
if (notifier->name.empty()) {
std::snprintf(arr[num].name, sizeof(arr[num].name), "Notifier%d",
static_cast<int>(getHandleIndex(handle)));
wpi::format_to_n_c_str(arr[num].name, sizeof(arr[num].name),
"Notifier{}",
static_cast<int>(getHandleIndex(handle)));
} else {
std::strncpy(arr[num].name, notifier->name.c_str(),
sizeof(arr[num].name) - 1);