1 files changed, 10 insertions, 8 deletions
diff --git a/src/util/strencodings.h b/src/util/strencodings.h
index 87ccf40a1b..7d16d7dcfd 100644
--- a/src/util/strencodings.h
+++ b/src/util/strencodings.h
@@ -9,7 +9,9 @@
 #ifndef BITCOIN_UTIL_STRENCODINGS_H
 #define BITCOIN_UTIL_STRENCODINGS_H
 
-#include <stdint.h>
+#include <attributes.h>
+
+#include <cstdint>
 #include <string>
 #include <vector>
 
@@ -92,35 +94,35 @@ constexpr inline bool IsSpace(char c) noexcept {
  * @returns true if the entire string could be parsed as valid integer,
  *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
-bool ParseInt32(const std::string& str, int32_t *out);
+NODISCARD bool ParseInt32(const std::string& str, int32_t *out);
 
 /**
  * Convert string to signed 64-bit integer with strict parse error feedback.
  * @returns true if the entire string could be parsed as valid integer,
  *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
-bool ParseInt64(const std::string& str, int64_t *out);
+NODISCARD bool ParseInt64(const std::string& str, int64_t *out);
 
 /**
  * Convert decimal string to unsigned 32-bit integer with strict parse error feedback.
  * @returns true if the entire string could be parsed as valid integer,
  *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
-bool ParseUInt32(const std::string& str, uint32_t *out);
+NODISCARD bool ParseUInt32(const std::string& str, uint32_t *out);
 
 /**
  * Convert decimal string to unsigned 64-bit integer with strict parse error feedback.
  * @returns true if the entire string could be parsed as valid integer,
  *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
-bool ParseUInt64(const std::string& str, uint64_t *out);
+NODISCARD bool ParseUInt64(const std::string& str, uint64_t *out);
 
 /**
  * Convert string to double with strict parse error feedback.
  * @returns true if the entire string could be parsed as valid double,
  *   false if not the entire string could be parsed or when overflow or underflow occurred.
  */
-bool ParseDouble(const std::string& str, double *out);
+NODISCARD bool ParseDouble(const std::string& str, double *out);
 
 template<typename T>
 std::string HexStr(const T itbegin, const T itend, bool fSpaces=false)
@@ -173,7 +175,7 @@ bool TimingResistantEqual(const T& a, const T& b)
  * @returns true on success, false on error.
  * @note The result must be in the range (-10^18,10^18), otherwise an overflow error will trigger.
  */
-bool ParseFixedPoint(const std::string &val, int decimals, int64_t *amount_out);
+NODISCARD bool ParseFixedPoint(const std::string &val, int decimals, int64_t *amount_out);
 
 /** Convert from one power-of-2 number base to another. */
 template<int frombits, int tobits, bool pad, typename O, typename I>
@@ -200,7 +202,7 @@ bool ConvertBits(const O& outfn, I it, I end) {
 }
 
 /** Parse an HD keypaths like "m/7/0'/2000". */
-bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath);
+NODISCARD bool ParseHDKeypath(const std::string& keypath_str, std::vector<uint32_t>& keypath);
 
 /**
  * Converts the given character to its lowercase equivalent.