JW_FLT_KV

Documentation

API Reference

JW_FLT_KV

Description

Write a key and float value to a JSON object.

Parameters

Name	Direction	Description
`j`	in,out	The target string to append to.
`k`	in	Key name.
`f`	in	Floating-point value.

Usage example (from documentation)

  JW_FLT_KV(json, "pi", 3.14159);

Success

Appends a key-value float pair

Failure

Does not return on failure

Usage example (Cross-references)

Usage examples (Cross-references)

In Write.Nested.c:197:

                        JW_STR_KV(json, "head", data.company.departments.engineering.head);
                        JW_INT_KV(json, "count", data.company.departments.engineering.count);
                        JW_FLT_KV(json, "budget", data.company.departments.engineering.budget);
                    });
                });

In Write.Nested.c:256:

    
                        JW_OBJ_KV(json, target_key.data, {
                            JW_FLT_KV(json, "distance", s->distance);
                            JW_INT_KV(json, "nearest_neighbor_analysis_id", s->analysis_id);
                            JW_INT_KV(json, "nearest_neighbor_binary_id", s->binary_id);

In Write.Nested.c:417:

    
                JW_OBJ_KV(json, target_key.data, {
                    JW_FLT_KV(json, "distance", symbol.distance);
                    JW_STR_KV(json, "name", symbol.function_name);
                });

In Write.EdgeCases.c:160:

        JW_OBJ(json, {
            JW_INT_KV(json, "temp", temp);
            JW_FLT_KV(json, "balance", balance);
            JW_FLT_KV(json, "delta", delta);
        });

In Write.EdgeCases.c:161:

            JW_INT_KV(json, "temp", temp);
            JW_FLT_KV(json, "balance", balance);
            JW_FLT_KV(json, "delta", delta);
        });

In Write.EdgeCases.c:186:

        JW_OBJ(json, {
            JW_INT_KV(json, "big_int", big_int);
            JW_FLT_KV(json, "big_float", big_float);
            JW_FLT_KV(json, "small_float", small_float);
        });

In Write.EdgeCases.c:187:

            JW_INT_KV(json, "big_int", big_int);
            JW_FLT_KV(json, "big_float", big_float);
            JW_FLT_KV(json, "small_float", small_float);
        });

In Write.EdgeCases.c:217:

        JW_OBJ(json, {
            JW_INT_KV(json, "int_zero", int_zero);
            JW_FLT_KV(json, "float_zero", float_zero);
            JW_BOOL_KV(json, "bool_false", bool_false);
        });

In Write.EdgeCases.c:422:

    
        JW_OBJ(json, {
            JW_FLT_KV(json, "tiny", tiny);
            JW_FLT_KV(json, "huge", huge);
            JW_FLT_KV(json, "zero", zero);

In Write.EdgeCases.c:423:

        JW_OBJ(json, {
            JW_FLT_KV(json, "tiny", tiny);
            JW_FLT_KV(json, "huge", huge);
            JW_FLT_KV(json, "zero", zero);
            JW_FLT_KV(json, "negative_tiny", negative_tiny);

In Write.EdgeCases.c:424:

            JW_FLT_KV(json, "tiny", tiny);
            JW_FLT_KV(json, "huge", huge);
            JW_FLT_KV(json, "zero", zero);
            JW_FLT_KV(json, "negative_tiny", negative_tiny);
        });

In Write.EdgeCases.c:425:

            JW_FLT_KV(json, "huge", huge);
            JW_FLT_KV(json, "zero", zero);
            JW_FLT_KV(json, "negative_tiny", negative_tiny);
        });

In Write.EdgeCases.c:464:

        // Single float
        f64 single_float = 3.14;
        JW_OBJ(json4, { JW_FLT_KV(json4, "pi", single_float); });
    
        const char *expected1 = "{\"value\":42}";

In Write.Simple.c:140:

        JW_OBJ(json, {
            JW_INT_KV(json, "count", count);
            JW_FLT_KV(json, "score", score);
            JW_INT_KV(json, "year", year);
        });

In Write.Simple.c:191:

            JW_INT_KV(json, "age", person.age);
            JW_BOOL_KV(json, "is_active", person.is_active);
            JW_FLT_KV(json, "salary", person.salary);
        });

In Write.Simple.c:321:

            JW_INT_KV(json, "id", product.id);
            JW_STR_KV(json, "name", product.name);
            JW_FLT_KV(json, "price", product.price);
            JW_ARR_KV(json, "tags", product.tags, tag, { JW_STR(json, tag); });
        });

In RoundTrip.c:102:

        JW_OBJ(json, {
            JW_INT_KV(json, "count", original.count);
            JW_FLT_KV(json, "temperature", original.temperature);
            JW_BOOL_KV(json, "enabled", original.enabled);
            JW_STR_KV(json, "message", original.message);

In RoundTrip.c:176:

            JW_INT_KV(json, "negative_int", original.negative_int);
            JW_INT_KV(json, "zero_int", original.zero_int);
            JW_FLT_KV(json, "precise_float", original.precise_float);
            JW_FLT_KV(json, "small_float", original.small_float);
            JW_FLT_KV(json, "negative_float", original.negative_float);

In RoundTrip.c:177:

            JW_INT_KV(json, "zero_int", original.zero_int);
            JW_FLT_KV(json, "precise_float", original.precise_float);
            JW_FLT_KV(json, "small_float", original.small_float);
            JW_FLT_KV(json, "negative_float", original.negative_float);
        });

In RoundTrip.c:178:

            JW_FLT_KV(json, "precise_float", original.precise_float);
            JW_FLT_KV(json, "small_float", original.small_float);
            JW_FLT_KV(json, "negative_float", original.negative_float);
        });

In RoundTrip.c:465:

                JW_INT_KV(json, "age", original_person.age);
                JW_BOOL_KV(json, "is_active", original_person.is_active);
                JW_FLT_KV(json, "salary", original_person.salary);
            });
        });

In RoundTrip.c:544:

                JW_INT_KV(json, "age", original.user.age);
                JW_BOOL_KV(json, "is_active", original.user.is_active);
                JW_FLT_KV(json, "salary", original.user.salary);
            });
            JW_OBJ_KV(json, "config", {

In RoundTrip.c:738:

            JW_INT_KV(json, "min_int", original.min_int);
            JW_INT_KV(json, "zero", original.zero);
            JW_FLT_KV(json, "zero_float", original.zero_float);
            JW_BOOL_KV(json, "true_val", original.true_val);
            JW_BOOL_KV(json, "false_val", original.false_val);

Last updated on April 20, 2026

JW_FLT JW_INT